137670625 has 20 divisors (see below), whose sum is σ = 173194560. Its totient is φ = 109394000.

The previous prime is 137670623. The next prime is 137670647. The reversal of 137670625 is 526076731.

137670625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137670625 - 2¹ = 137670623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137670623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 103716 + ... + 105034.

It is an arithmetic number, because the mean of its divisors is an integer number (8659728).

Almost surely, 2^137670625 is an apocalyptic number.

It is an amenable number.

137670625 is a deficient number, since it is larger than the sum of its proper divisors (35523935).

137670625 is an equidigital number, since it uses as much as digits as its factorization.

137670625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 137670625 is about 11733.3126183529. The cubic root of 137670625 is about 516.3534637766.

It can be divided in two parts, 1376706 and 25, that added together give a palindrome (1376731).

The spelling of 137670625 in words is "one hundred thirty-seven million, six hundred seventy thousand, six hundred twenty-five".