137875025 has 6 divisors (see below), whose sum is σ = 170965062. Its totient is φ = 110300000.

The previous prime is 137875007. The next prime is 137875043. The reversal of 137875025 is 520578731.

It is a happy number.

137875025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (137875007) and next prime (137875043).

It can be written as a sum of positive squares in 3 ways, for example, as 2408704 + 135466321 = 1552^2 + 11639^2 .

It is not a de Polignac number, because 137875025 - 2⁸ = 137874769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137875025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2757476 + ... + 2757525.

It is an arithmetic number, because the mean of its divisors is an integer number (28494177).

Almost surely, 2^137875025 is an apocalyptic number.

It is an amenable number.

137875025 is a deficient number, since it is larger than the sum of its proper divisors (33090037).

137875025 is an equidigital number, since it uses as much as digits as its factorization.

137875025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515011 (or 5515006 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 137875025 is about 11742.0196303702. The cubic root of 137875025 is about 516.6088812701.

The spelling of 137875025 in words is "one hundred thirty-seven million, eight hundred seventy-five thousand, twenty-five".