3115431 has 12 divisors (see below), whose sum is σ = 4909320. Its totient is φ = 1888080.

The previous prime is 3115429. The next prime is 3115439. The reversal of 3115431 is 1345113.

Added to its reverse (1345113) it gives a square (4460544 = 2112²).

It is not a de Polignac number, because 3115431 - 2¹ = 3115429 is a prime.

It is a super-2 number, since 2×3115431² = 19411820631522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115439) 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 11 ways as a sum of consecutive naturals, for example, 15636 + ... + 15833.

It is an arithmetic number, because the mean of its divisors is an integer number (409110).

Almost surely, 2^3115431 is an apocalyptic number.

3115431 is a deficient number, since it is larger than the sum of its proper divisors (1793889).

3115431 is a wasteful number, since it uses less digits than its factorization.

3115431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31486 (or 31483 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 3115431 is about 1765.0583559758. The cubic root of 3115431 is about 146.0515080661.

Adding to 3115431 its reverse (1345113), we get a square (4460544 = 2112²).

The spelling of 3115431 in words is "three million, one hundred fifteen thousand, four hundred thirty-one".