157220938 has 16 divisors (see below), whose sum is σ = 270063360. Its totient is φ = 67244976.

The previous prime is 157220923. The next prime is 157220941. The reversal of 157220938 is 839022751.

It is a junction number, because it is equal to n+sod(n) for n = 157220897 and 157220906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3906 + ... + 18157.

It is an arithmetic number, because the mean of its divisors is an integer number (16878960).

Almost surely, 2^157220938 is an apocalyptic number.

157220938 is a deficient number, since it is larger than the sum of its proper divisors (112842422).

157220938 is a wasteful number, since it uses less digits than its factorization.

157220938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22581.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 157220938 is about 12538.7773726149. Note that the first 3 decimals coincide. The cubic root of 157220938 is about 539.7220082634.

The spelling of 157220938 in words is "one hundred fifty-seven million, two hundred twenty thousand, nine hundred thirty-eight".