156307968 has 100 divisors (see below), whose sum is σ = 466661910. Its totient is φ = 52088832.

The previous prime is 156307951. The next prime is 156307969. The reversal of 156307968 is 869703651.

It is a happy number.

156307968 is a `hidden beast` number, since 1 + 5 + 630 + 7 + 9 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110502144 + 45805824 = 10512^2 + 6768^2 .

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (156307969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39588 + ... + 43356.

Almost surely, 2^156307968 is an apocalyptic number.

156307968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156307968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233330955).

156307968 is an abundant number, since it is smaller than the sum of its proper divisors (310353942).

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

156307968 is an frugal number, since it uses more digits than its factorization.

156307968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799 (or 3774 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 156307968 is about 12502.3185049814. The cubic root of 156307968 is about 538.6752713501.

The spelling of 156307968 in words is "one hundred fifty-six million, three hundred seven thousand, nine hundred sixty-eight".