3131472 has 20 divisors (see below), whose sum is σ = 8089760. Its totient is φ = 1043808.

The previous prime is 3131467. The next prime is 3131477. The reversal of 3131472 is 2741313.

It is an interprime number because it is at equal distance from previous prime (3131467) and next prime (3131477).

It is a super-2 number, since 2×3131472² = 19612233773568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131477) 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, 32572 + ... + 32667.

It is an arithmetic number, because the mean of its divisors is an integer number (404488).

Almost surely, 2^3131472 is an apocalyptic number.

It is an amenable number.

3131472 is an abundant number, since it is smaller than the sum of its proper divisors (4958288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131472 is a wasteful number, since it uses less digits than its factorization.

3131472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65250 (or 65244 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 3131472 is about 1769.5965641920. The cubic root of 3131472 is about 146.3017466094.

Adding to 3131472 its reverse (2741313), we get a palindrome (5872785).

The spelling of 3131472 in words is "three million, one hundred thirty-one thousand, four hundred seventy-two".