158977390 has 64 divisors (see below), whose sum is σ = 339655680. Its totient is φ = 52813440.

The previous prime is 158977361. The next prime is 158977397. The reversal of 158977390 is 93779851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158977397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152491 + ... + 153529.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 2^158977390 is an apocalyptic number.

158977390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158977390 is an abundant number, since it is smaller than the sum of its proper divisors (180678290).

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

158977390 is a wasteful number, since it uses less digits than its factorization.

158977390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 158977390 is about 12608.6236362261. The cubic root of 158977390 is about 541.7244710961.

The spelling of 158977390 in words is "one hundred fifty-eight million, nine hundred seventy-seven thousand, three hundred ninety".