157090775 has 6 divisors (see below), whose sum is σ = 194792592. Its totient is φ = 125672600.

The previous prime is 157090771. The next prime is 157090777. The reversal of 157090775 is 577090751.

It is not a de Polignac number, because 157090775 - 2² = 157090771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157090771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3141791 + ... + 3141840.

It is an arithmetic number, because the mean of its divisors is an integer number (32465432).

Almost surely, 2^157090775 is an apocalyptic number.

157090775 is a deficient number, since it is larger than the sum of its proper divisors (37701817).

157090775 is an equidigital number, since it uses as much as digits as its factorization.

157090775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283641 (or 6283636 counting only the distinct ones).

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

The square root of 157090775 is about 12533.5858795478. The cubic root of 157090775 is about 539.5730221027.

The spelling of 157090775 in words is "one hundred fifty-seven million, ninety thousand, seven hundred seventy-five".