3161725631 has 2 divisors, whose sum is σ = 3161725632. Its totient is φ = 3161725630.

The previous prime is 3161725621. The next prime is 3161725639. The reversal of 3161725631 is 1365271613.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3161725631 is a prime.

It is a super-2 number, since 2×3161725631² = 19993017931444696322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3161725591 and 3161725600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3161725639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580862815 + 1580862816.

It is an arithmetic number, because the mean of its divisors is an integer number (1580862816).

Almost surely, 2^3161725631 is an apocalyptic number.

3161725631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3161725631 is an equidigital number, since it uses as much as digits as its factorization.

3161725631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 3161725631 is about 56229.2239942897. The cubic root of 3161725631 is about 1467.7138529042.

The spelling of 3161725631 in words is "three billion, one hundred sixty-one million, seven hundred twenty-five thousand, six hundred thirty-one".