157074644 has 12 divisors (see below), whose sum is σ = 283747968. Its totient is φ = 76003800.

The previous prime is 157074641. The next prime is 157074661. The reversal of 157074644 is 446470751.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 157074598 and 157074607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157074641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 633242 + ... + 633489.

It is an arithmetic number, because the mean of its divisors is an integer number (23645664).

Almost surely, 2^157074644 is an apocalyptic number.

It is an amenable number.

157074644 is a deficient number, since it is larger than the sum of its proper divisors (126673324).

157074644 is a wasteful number, since it uses less digits than its factorization.

157074644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266766 (or 1266764 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 157074644 is about 12532.9423520576. The cubic root of 157074644 is about 539.5545526321.

The spelling of 157074644 in words is "one hundred fifty-seven million, seventy-four thousand, six hundred forty-four".