157194864 has 80 divisors (see below), whose sum is σ = 458026240. Its totient is φ = 51606720.

The previous prime is 157194827. The next prime is 157194871. The reversal of 157194864 is 468491751.

157194864 is a `hidden beast` number, since 157 + 19 + 486 + 4 = 666.

157194864 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26229 + ... + 31659.

It is an arithmetic number, because the mean of its divisors is an integer number (5725328).

Almost surely, 2^157194864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157194864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229013120).

157194864 is an abundant number, since it is smaller than the sum of its proper divisors (300831376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157194864 is a wasteful number, since it uses less digits than its factorization.

157194864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515 (or 5503 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 157194864 is about 12537.7375949571. The cubic root of 157194864 is about 539.6921702324.

The spelling of 157194864 in words is "one hundred fifty-seven million, one hundred ninety-four thousand, eight hundred sixty-four".