157087822 has 4 divisors (see below), whose sum is σ = 235631736. Its totient is φ = 78543910.

The previous prime is 157087811. The next prime is 157087849. The reversal of 157087822 is 228780751.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39271954 + ... + 39271957.

It is an arithmetic number, because the mean of its divisors is an integer number (58907934).

Almost surely, 2^157087822 is an apocalyptic number.

157087822 is a deficient number, since it is larger than the sum of its proper divisors (78543914).

157087822 is an equidigital number, since it uses as much as digits as its factorization.

157087822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78543913.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 157087822 is about 12533.4680755168. The cubic root of 157087822 is about 539.5696411082.

The spelling of 157087822 in words is "one hundred fifty-seven million, eighty-seven thousand, eight hundred twenty-two".