31114491 has 4 divisors (see below), whose sum is σ = 41485992. Its totient is φ = 20742992.

The previous prime is 31114487. The next prime is 31114493. The reversal of 31114491 is 19441113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31114491 - 2² = 31114487 is a prime.

It is a super-2 number, since 2×31114491² = 1936223100378162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31114493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5185746 + ... + 5185751.

It is an arithmetic number, because the mean of its divisors is an integer number (10371498).

Almost surely, 2^31114491 is an apocalyptic number.

31114491 is a deficient number, since it is larger than the sum of its proper divisors (10371501).

31114491 is a wasteful number, since it uses less digits than its factorization.

31114491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10371500.

The product of its digits is 432, while the sum is 24.

The square root of 31114491 is about 5578.0364824909. The cubic root of 31114491 is about 314.5243210954.

The spelling of 31114491 in words is "thirty-one million, one hundred fourteen thousand, four hundred ninety-one".