157986458 has 16 divisors (see below), whose sum is σ = 276597504. Its totient is φ = 66267600.

The previous prime is 157986449. The next prime is 157986497. The reversal of 157986458 is 854689751.

It is a super-2 number, since 2×157986458² = 49919441822771528, which contains 22 as substring.

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, 119393 + ... + 120708.

It is an arithmetic number, because the mean of its divisors is an integer number (17287344).

Almost surely, 2^157986458 is an apocalyptic number.

157986458 is a deficient number, since it is larger than the sum of its proper divisors (118611046).

157986458 is a wasteful number, since it uses less digits than its factorization.

157986458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240157.

The product of its digits is 2419200, while the sum is 53.

The square root of 157986458 is about 12569.2664065967. The cubic root of 157986458 is about 540.5965720537.

The spelling of 157986458 in words is "one hundred fifty-seven million, nine hundred eighty-six thousand, four hundred fifty-eight".