137025320 has 32 divisors (see below), whose sum is σ = 309889800. Its totient is φ = 54528768.

The previous prime is 137025311. The next prime is 137025323. The reversal of 137025320 is 23520731.

It can be written as a sum of positive squares in 4 ways, for example, as 136282276 + 743044 = 11674^2 + 862^2 .

It is a super-2 number, since 2×137025320² = 37551876642204800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137025323) 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, 815 + ... + 16574.

Almost surely, 2^137025320 is an apocalyptic number.

137025320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137025320 is an abundant number, since it is smaller than the sum of its proper divisors (172864480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137025320 is a wasteful number, since it uses less digits than its factorization.

137025320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17597 (or 17593 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 137025320 is about 11705.7814775435. The cubic root of 137025320 is about 515.5454302438.

The spelling of 137025320 in words is "one hundred thirty-seven million, twenty-five thousand, three hundred twenty".