157658930 has 32 divisors (see below), whose sum is σ = 333402048. Its totient is φ = 52920000.

The previous prime is 157658927. The next prime is 157658959. The reversal of 157658930 is 39856751.

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, 53696 + ... + 56555.

It is an arithmetic number, because the mean of its divisors is an integer number (10418814).

Almost surely, 2^157658930 is an apocalyptic number.

157658930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157658930 is an abundant number, since it is smaller than the sum of its proper divisors (175743118).

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

157658930 is a wasteful number, since it uses less digits than its factorization.

157658930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110282.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 157658930 is about 12556.2307242261. The cubic root of 157658930 is about 540.2227361894. Note that the first 3 decimals are identical.

It can be divided in two parts, 1576 and 58930, that added together give a palindrome (60506).

The spelling of 157658930 in words is "one hundred fifty-seven million, six hundred fifty-eight thousand, nine hundred thirty".