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12537125 = 53100297
BaseRepresentation
bin101111110100…
…110100100101
3212120221200222
4233310310211
511202142000
61124414125
7211364246
oct57646445
925527628
1012537125
117093367
124247345
13279c623
141944ccd
151179a85
hexbf4d25

12537125 has 8 divisors (see below), whose sum is σ = 15646488. Its totient is φ = 10029600.

The previous prime is 12537121. The next prime is 12537149. The reversal of 12537125 is 52173521.

It can be written as a sum of positive squares in 4 ways, for example, as 160801 + 12376324 = 401^2 + 3518^2 .

It is not a de Polignac number, because 12537125 - 22 = 12537121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12537094 and 12537103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50024 + ... + 50273.

It is an arithmetic number, because the mean of its divisors is an integer number (1955811).

Almost surely, 212537125 is an apocalyptic number.

It is an amenable number.

12537125 is a deficient number, since it is larger than the sum of its proper divisors (3109363).

12537125 is an equidigital number, since it uses as much as digits as its factorization.

12537125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100312 (or 100302 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 12537125 is about 3540.7802812375. The cubic root of 12537125 is about 232.3089732414.

The spelling of 12537125 in words is "twelve million, five hundred thirty-seven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 100297 501485 2507425 12537125