3131124491 has 8 divisors (see below), whose sum is σ = 3431092224. Its totient is φ = 2833710120.

The previous prime is 3131124457. The next prime is 3131124509. The reversal of 3131124491 is 1944211313.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131124491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131124431) 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, 635771 + ... + 640676.

It is an arithmetic number, because the mean of its divisors is an integer number (428886528).

Almost surely, 2^3131124491 is an apocalyptic number.

3131124491 is a deficient number, since it is larger than the sum of its proper divisors (299967733).

3131124491 is a wasteful number, since it uses less digits than its factorization.

3131124491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276681.

The product of its digits is 2592, while the sum is 29.

The square root of 3131124491 is about 55956.4517370428. The cubic root of 3131124491 is about 1462.9633455887.

The spelling of 3131124491 in words is "three billion, one hundred thirty-one million, one hundred twenty-four thousand, four hundred ninety-one".