3131434491 has 16 divisors (see below), whose sum is σ = 4280901408. Its totient is φ = 2034886400.

The previous prime is 3131434477. The next prime is 3131434547. The reversal of 3131434491 is 1944341313.

It is a cyclic number.

It is not a de Polignac number, because 3131434491 - 2¹⁰ = 3131433467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3131434091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134485 + ... + 156041.

It is an arithmetic number, because the mean of its divisors is an integer number (267556338).

Almost surely, 2^3131434491 is an apocalyptic number.

3131434491 is a deficient number, since it is larger than the sum of its proper divisors (1149466917).

3131434491 is a wasteful number, since it uses less digits than its factorization.

3131434491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22782.

The product of its digits is 15552, while the sum is 33.

The square root of 3131434491 is about 55959.2216797196. The cubic root of 3131434491 is about 1463.0116246944.

The spelling of 3131434491 in words is "three billion, one hundred thirty-one million, four hundred thirty-four thousand, four hundred ninety-one".