156336990 has 16 divisors (see below), whose sum is σ = 375208848. Its totient is φ = 41689856.

The previous prime is 156336953. The next prime is 156337001. The reversal of 156336990 is 99633651.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2605587 + ... + 2605646.

It is an arithmetic number, because the mean of its divisors is an integer number (23450553).

Almost surely, 2^156336990 is an apocalyptic number.

156336990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156336990 is an abundant number, since it is smaller than the sum of its proper divisors (218871858).

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

156336990 is a wasteful number, since it uses less digits than its factorization.

156336990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211243.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 156336990 is about 12503.4791158301. The cubic root of 156336990 is about 538.7086082436.

The spelling of 156336990 in words is "one hundred fifty-six million, three hundred thirty-six thousand, nine hundred ninety".