157813222 has 24 divisors (see below), whose sum is σ = 279892800. Its totient is φ = 66522960.

The previous prime is 157813213. The next prime is 157813231. The reversal of 157813222 is 222318751.

It is an interprime number because it is at equal distance from previous prime (157813213) and next prime (157813231).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7222 + ... + 19177.

It is an arithmetic number, because the mean of its divisors is an integer number (11662200).

Almost surely, 2^157813222 is an apocalyptic number.

157813222 is a deficient number, since it is larger than the sum of its proper divisors (122079578).

157813222 is a wasteful number, since it uses less digits than its factorization.

157813222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26476 (or 26469 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 157813222 is about 12562.3732630423. The cubic root of 157813222 is about 540.3989073510.

The spelling of 157813222 in words is "one hundred fifty-seven million, eight hundred thirteen thousand, two hundred twenty-two".