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12135325 = 524211153
BaseRepresentation
bin101110010010…
…101110011101
3211211112112111
4232102232131
511101312300
61112034021
7205101646
oct56225635
924745474
1012135325
1169394a4
124092911
13268b787
14187c6cd
1510ea9ba
hexb92b9d

12135325 has 12 divisors (see below), whose sum is σ = 15096628. Its totient is φ = 9676800.

The previous prime is 12135313. The next prime is 12135337. The reversal of 12135325 is 52353121.

It is an interprime number because it is at equal distance from previous prime (12135313) and next prime (12135337).

It can be written as a sum of positive squares in 6 ways, for example, as 1390041 + 10745284 = 1179^2 + 3278^2 .

It is not a de Polignac number, because 12135325 - 25 = 12135293 is a prime.

It is a super-2 number, since 2×121353252 = 294532225711250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12135296 and 12135305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9949 + ... + 11101.

Almost surely, 212135325 is an apocalyptic number.

It is an amenable number.

12135325 is a deficient number, since it is larger than the sum of its proper divisors (2961303).

12135325 is a wasteful number, since it uses less digits than its factorization.

12135325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1579 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 12135325 is about 3483.5793374057. The cubic root of 12135325 is about 229.8002361254.

Adding to 12135325 its reverse (52353121), we get a palindrome (64488446).

The spelling of 12135325 in words is "twelve million, one hundred thirty-five thousand, three hundred twenty-five".

Divisors: 1 5 25 421 1153 2105 5765 10525 28825 485413 2427065 12135325