137512625 has 8 divisors (see below), whose sum is σ = 171615912. Its totient is φ = 110010000.

The previous prime is 137512619. The next prime is 137512649. The reversal of 137512625 is 526215731.

It can be written as a sum of positive squares in 4 ways, for example, as 5997601 + 131515024 = 2449^2 + 11468^2 .

It is a de Polignac number, because none of the positive numbers 2^k-137512625 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 137512591 and 137512600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549926 + ... + 550175.

It is an arithmetic number, because the mean of its divisors is an integer number (21451989).

Almost surely, 2^137512625 is an apocalyptic number.

It is an amenable number.

137512625 is a deficient number, since it is larger than the sum of its proper divisors (34103287).

137512625 is an equidigital number, since it uses as much as digits as its factorization.

137512625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100116 (or 1100106 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 137512625 is about 11726.5777190108. The cubic root of 137512625 is about 516.1558542586.

The spelling of 137512625 in words is "one hundred thirty-seven million, five hundred twelve thousand, six hundred twenty-five".