130211972 has 36 divisors (see below), whose sum is σ = 259134540. Its totient is φ = 57140160.

The previous prime is 130211971. The next prime is 130211999. The reversal of 130211972 is 279112031.

It can be written as a sum of positive squares in 2 ways, for example, as 88661056 + 41550916 = 9416^2 + 6446^2 .

It is not an unprimeable number, because it can be changed into a prime (130211971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9398 + ... + 18674.

Almost surely, 2^130211972 is an apocalyptic number.

It is an amenable number.

130211972 is a deficient number, since it is larger than the sum of its proper divisors (128922568).

130211972 is a wasteful number, since it uses less digits than its factorization.

130211972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9332 (or 9319 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 130211972 is about 11411.0460519621. The cubic root of 130211972 is about 506.8548875563.

The spelling of 130211972 in words is "one hundred thirty million, two hundred eleven thousand, nine hundred seventy-two".