157739974 has 16 divisors (see below), whose sum is σ = 286318368. Its totient is φ = 63626112.

The previous prime is 157739963. The next prime is 157739983. The reversal of 157739974 is 479937751.

157739974 is digitally balanced in base 3, because in such base 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 7 ways as a sum of consecutive naturals, for example, 331149 + ... + 331624.

It is an arithmetic number, because the mean of its divisors is an integer number (17894898).

Almost surely, 2^157739974 is an apocalyptic number.

157739974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

157739974 is a deficient number, since it is larger than the sum of its proper divisors (128578394).

157739974 is a wasteful number, since it uses less digits than its factorization.

157739974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662799.

The product of its digits is 1666980, while the sum is 52.

The square root of 157739974 is about 12559.4575519805. The cubic root of 157739974 is about 540.3152868442.

The spelling of 157739974 in words is "one hundred fifty-seven million, seven hundred thirty-nine thousand, nine hundred seventy-four".