2151164931 has 8 divisors (see below), whose sum is σ = 2868460224. Its totient is φ = 1433989800.

The previous prime is 2151164923. The next prime is 2151164959. The reversal of 2151164931 is 1394611512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2151164931 - 2³ = 2151164923 is a prime.

It is a super-2 number, since 2×2151164931² = 9255021120728469522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2151164892 and 2151164901.

It is not an unprimeable number, because it can be changed into a prime (2151164731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27456 + ... + 71106.

It is an arithmetic number, because the mean of its divisors is an integer number (358557528).

Almost surely, 2^2151164931 is an apocalyptic number.

2151164931 is a deficient number, since it is larger than the sum of its proper divisors (717295293).

2151164931 is a wasteful number, since it uses less digits than its factorization.

2151164931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60081.

The product of its digits is 6480, while the sum is 33.

The square root of 2151164931 is about 46380.6525503900. The cubic root of 2151164931 is about 1290.8959445081.

The spelling of 2151164931 in words is "two billion, one hundred fifty-one million, one hundred sixty-four thousand, nine hundred thirty-one".