137313905 has 8 divisors (see below), whose sum is σ = 164851200. Its totient is φ = 109801456.

The previous prime is 137313899. The next prime is 137313907. The reversal of 137313905 is 509313731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137313905 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137313907) 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, 9626 + ... + 19164.

It is an arithmetic number, because the mean of its divisors is an integer number (20606400).

Almost surely, 2^137313905 is an apocalyptic number.

It is an amenable number.

137313905 is a deficient number, since it is larger than the sum of its proper divisors (27537295).

137313905 is an equidigital number, since it uses as much as digits as its factorization.

137313905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12423.

The product of its (nonzero) digits is 8505, while the sum is 32.

The square root of 137313905 is about 11718.1015953950. The cubic root of 137313905 is about 515.9071014880.

The spelling of 137313905 in words is "one hundred thirty-seven million, three hundred thirteen thousand, nine hundred five".