157145793 has 16 divisors (see below), whose sum is σ = 244348800. Its totient is φ = 89797008.

The previous prime is 157145783. The next prime is 157145797. The reversal of 157145793 is 397541751.

It is not a de Polignac number, because 157145793 - 2⁸ = 157145537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157145797) 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, 75330 + ... + 77387.

It is an arithmetic number, because the mean of its divisors is an integer number (15271800).

Almost surely, 2^157145793 is an apocalyptic number.

It is an amenable number.

157145793 is a deficient number, since it is larger than the sum of its proper divisors (87203007).

157145793 is an equidigital number, since it uses as much as digits as its factorization.

157145793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152741 (or 152727 counting only the distinct ones).

The product of its digits is 132300, while the sum is 42.

The square root of 157145793 is about 12535.7805102036. The cubic root of 157145793 is about 539.6360064155.

The spelling of 157145793 in words is "one hundred fifty-seven million, one hundred forty-five thousand, seven hundred ninety-three".