6131961 has 24 divisors (see below), whose sum is σ = 10086336. Its totient is φ = 3553440.

The previous prime is 6131953. The next prime is 6131977. The reversal of 6131961 is 1691316.

It is not a de Polignac number, because 6131961 - 2³ = 6131953 is a prime.

6131961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6131911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 931 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (420264).

Almost surely, 2^6131961 is an apocalyptic number.

It is an amenable number.

6131961 is a deficient number, since it is larger than the sum of its proper divisors (3954375).

6131961 is a wasteful number, since it uses less digits than its factorization.

6131961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2730 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 6131961 is about 2476.2796691812. The cubic root of 6131961 is about 183.0345719866.

The spelling of 6131961 in words is "six million, one hundred thirty-one thousand, nine hundred sixty-one".