3161996931 has 8 divisors (see below), whose sum is σ = 4351995904. Its totient is φ = 2039997960.

The previous prime is 3161996917. The next prime is 3161996941. The reversal of 3161996931 is 1396991613.

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

It is not a de Polignac number, because 3161996931 - 2⁵ = 3161996899 is a prime.

It is a super-2 number, since 2×3161996931² = 19996449183306837522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3161996941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16999891 + ... + 17000076.

It is an arithmetic number, because the mean of its divisors is an integer number (543999488).

Almost surely, 2^3161996931 is an apocalyptic number.

3161996931 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3161996931 is a deficient number, since it is larger than the sum of its proper divisors (1189998973).

3161996931 is a wasteful number, since it uses less digits than its factorization.

3161996931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34000001.

The product of its digits is 236196, while the sum is 48.

The square root of 3161996931 is about 56231.6363891360. The cubic root of 3161996931 is about 1467.7558320243.

The spelling of 3161996931 in words is "three billion, one hundred sixty-one million, nine hundred ninety-six thousand, nine hundred thirty-one".