157690590 has 16 divisors (see below), whose sum is σ = 378457488. Its totient is φ = 42050816.

The previous prime is 157690579. The next prime is 157690607. The reversal of 157690590 is 95096751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2628147 + ... + 2628206.

It is an arithmetic number, because the mean of its divisors is an integer number (23653593).

Almost surely, 2^157690590 is an apocalyptic number.

157690590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157690590 is an abundant number, since it is smaller than the sum of its proper divisors (220766898).

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

157690590 is a wasteful number, since it uses less digits than its factorization.

157690590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256363.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 157690590 is about 12557.4913896049. The cubic root of 157690590 is about 540.2588950611.

The spelling of 157690590 in words is "one hundred fifty-seven million, six hundred ninety thousand, five hundred ninety".