156318380 has 12 divisors (see below), whose sum is σ = 328268640. Its totient is φ = 62527344.

The previous prime is 156318367. The next prime is 156318401. The reversal of 156318380 is 83813651.

It is a self number, because there is not a number n which added to its sum of digits gives 156318380.

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 3 ways as a sum of consecutive naturals, for example, 3907940 + ... + 3907979.

It is an arithmetic number, because the mean of its divisors is an integer number (27355720).

Almost surely, 2^156318380 is an apocalyptic number.

156318380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156318380 is an abundant number, since it is smaller than the sum of its proper divisors (171950260).

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

156318380 is a wasteful number, since it uses less digits than its factorization.

156318380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7815928 (or 7815926 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 156318380 is about 12502.7349008127. The cubic root of 156318380 is about 538.6872318459.

The spelling of 156318380 in words is "one hundred fifty-six million, three hundred eighteen thousand, three hundred eighty".