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12545141 = 71792163
BaseRepresentation
bin101111110110…
…110001110101
3212121100200212
4233312301311
511202421031
61124515205
7211426520
oct57666165
925540625
1012545141
117099394
12424bb05
1327a317b
141947bb7
15117c12b
hexbf6c75

12545141 has 4 divisors (see below), whose sum is σ = 14337312. Its totient is φ = 10752972.

The previous prime is 12545129. The next prime is 12545171. The reversal of 12545141 is 14154521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12545141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896075 + ... + 896088.

It is an arithmetic number, because the mean of its divisors is an integer number (3584328).

Almost surely, 212545141 is an apocalyptic number.

It is an amenable number.

12545141 is a deficient number, since it is larger than the sum of its proper divisors (1792171).

12545141 is an equidigital number, since it uses as much as digits as its factorization.

12545141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792170.

The product of its digits is 800, while the sum is 23.

The square root of 12545141 is about 3541.9120542441. The cubic root of 12545141 is about 232.3584740105.

Adding to 12545141 its reverse (14154521), we get a palindrome (26699662).

The spelling of 12545141 in words is "twelve million, five hundred forty-five thousand, one hundred forty-one".

Divisors: 1 7 1792163 12545141