137170290 has 32 divisors (see below), whose sum is σ = 340562880. Its totient is φ = 35317184.

The previous prime is 137170289. The next prime is 137170309. The reversal of 137170290 is 92071731.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77964 + ... + 79703.

It is an arithmetic number, because the mean of its divisors is an integer number (10642590).

Almost surely, 2^137170290 is an apocalyptic number.

137170290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137170290 is an abundant number, since it is smaller than the sum of its proper divisors (203392590).

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

137170290 is a wasteful number, since it uses less digits than its factorization.

137170290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157706.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 137170290 is about 11711.9720798848. The cubic root of 137170290 is about 515.7271783548.

The spelling of 137170290 in words is "one hundred thirty-seven million, one hundred seventy thousand, two hundred ninety".