155713690 has 32 divisors (see below), whose sum is σ = 308318400. Its totient is φ = 56618320.

The previous prime is 155713681. The next prime is 155713697. The reversal of 155713690 is 96317551.

It is a super-2 number, since 2×155713690² = 48493506506832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155713697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7461 + ... + 19159.

It is an arithmetic number, because the mean of its divisors is an integer number (9634950).

Almost surely, 2^155713690 is an apocalyptic number.

155713690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155713690 is a deficient number, since it is larger than the sum of its proper divisors (152604710).

155713690 is a wasteful number, since it uses less digits than its factorization.

155713690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11739 (or 11717 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 155713690 is about 12478.5291601214. The cubic root of 155713690 is about 537.9917288429.

The spelling of 155713690 in words is "one hundred fifty-five million, seven hundred thirteen thousand, six hundred ninety".