157318322 has 30 divisors (see below), whose sum is σ = 276820029. Its totient is φ = 67049640.

The previous prime is 157318319. The next prime is 157318379. The reversal of 157318322 is 223813751.

It can be written as a sum of positive squares in 2 ways, for example, as 95082001 + 62236321 = 9751^2 + 7889^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8869.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 869072 + ... + 869252.

Almost surely, 2^157318322 is an apocalyptic number.

157318322 is a deficient number, since it is larger than the sum of its proper divisors (119501707).

157318322 is an frugal number, since it uses more digits than its factorization.

157318322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 190 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 157318322 is about 12542.6600846870. The cubic root of 157318322 is about 539.8334214131.

Multiplying 157318322 by its sum of digits (32), we get a square (5034186304 = 70952²).

The spelling of 157318322 in words is "one hundred fifty-seven million, three hundred eighteen thousand, three hundred twenty-two".