3112531 has 4 divisors (see below), whose sum is σ = 3171312. Its totient is φ = 3053752.

The previous prime is 3112519. The next prime is 3112609. The reversal of 3112531 is 1352113.

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 3112531 - 2¹⁵ = 3079763 is a prime.

It is a super-2 number, since 2×3112531² = 19375698451922, which contains 22 as substring.

It is a Duffinian number.

3112531 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3112331) 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, 29311 + ... + 29416.

It is an arithmetic number, because the mean of its divisors is an integer number (792828).

Almost surely, 2^3112531 is an apocalyptic number.

3112531 is a deficient number, since it is larger than the sum of its proper divisors (58781).

3112531 is an equidigital number, since it uses as much as digits as its factorization.

3112531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58780.

The product of its digits is 90, while the sum is 16.

The square root of 3112531 is about 1764.2366621290. The cubic root of 3112531 is about 146.0061766324.

Adding to 3112531 its reverse (1352113), we get a palindrome (4464644).

The spelling of 3112531 in words is "three million, one hundred twelve thousand, five hundred thirty-one".