3131143252 has 12 divisors (see below), whose sum is σ = 5479952436. Its totient is φ = 1565442560.

The previous prime is 3131143231. The next prime is 3131143291. The reversal of 3131143252 is 2523411313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2902407876 + 228735376 = 53874^2 + 15124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40602 + ... + 88942.

It is an arithmetic number, because the mean of its divisors is an integer number (456662703).

Almost surely, 2^3131143252 is an apocalyptic number.

It is an amenable number.

3131143252 is a deficient number, since it is larger than the sum of its proper divisors (2348809184).

3131143252 is a wasteful number, since it uses less digits than its factorization.

3131143252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64538 (or 64536 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 3131143252 is about 55956.6193760845. The cubic root of 3131143252 is about 1462.9662674997.

Adding to 3131143252 its reverse (2523411313), we get a palindrome (5654554565).

The spelling of 3131143252 in words is "three billion, one hundred thirty-one million, one hundred forty-three thousand, two hundred fifty-two".