157775090 has 32 divisors (see below), whose sum is σ = 312206400. Its totient is φ = 56929600.

The previous prime is 157775083. The next prime is 157775129. The reversal of 157775090 is 90577751.

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, 8936 + ... + 19884.

It is an arithmetic number, because the mean of its divisors is an integer number (9756450).

Almost surely, 2^157775090 is an apocalyptic number.

157775090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157775090 is a deficient number, since it is larger than the sum of its proper divisors (154431310).

157775090 is a wasteful number, since it uses less digits than its factorization.

157775090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11098.

The product of its (nonzero) digits is 77175, while the sum is 41.

The square root of 157775090 is about 12560.8554644976. The cubic root of 157775090 is about 540.3553787822.

It can be divided in two parts, 1577 and 75090, that added together give a palindrome (76667).

The spelling of 157775090 in words is "one hundred fifty-seven million, seven hundred seventy-five thousand, ninety".