3161023857 has 12 divisors (see below), whose sum is σ = 4568289024. Its totient is φ = 2106257400.

The previous prime is 3161023847. The next prime is 3161023897. The reversal of 3161023857 is 7583201613.

3161023857 is a `hidden beast` number, since 3 + 1 + 610 + 2 + 38 + 5 + 7 = 666.

It is not a de Polignac number, because 3161023857 - 2⁷ = 3161023729 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3161023847) 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 11 ways as a sum of consecutive naturals, for example, 72453 + ... + 107570.

It is an arithmetic number, because the mean of its divisors is an integer number (380690752).

Almost surely, 2^3161023857 is an apocalyptic number.

It is an amenable number.

3161023857 is a deficient number, since it is larger than the sum of its proper divisors (1407265167).

3161023857 is a wasteful number, since it uses less digits than its factorization.

3161023857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181980 (or 181977 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 3161023857 is about 56222.9833520065. The cubic root of 3161023857 is about 1467.6052540190.

The spelling of 3161023857 in words is "three billion, one hundred sixty-one million, twenty-three thousand, eight hundred fifty-seven".