3102631225 has 12 divisors (see below), whose sum is σ = 3890493180. Its totient is φ = 2454214400.

The previous prime is 3102631177. The next prime is 3102631237. The reversal of 3102631225 is 5221362013.

It can be written as a sum of positive squares in 6 ways, for example, as 33028009 + 3069603216 = 5747^2 + 55404^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3102631225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 3102631225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 694996 + ... + 699445.

It is an arithmetic number, because the mean of its divisors is an integer number (324207765).

Almost surely, 2^3102631225 is an apocalyptic number.

It is an amenable number.

3102631225 is a deficient number, since it is larger than the sum of its proper divisors (787861955).

3102631225 is a wasteful number, since it uses less digits than its factorization.

3102631225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394540 (or 1394535 counting only the distinct ones).

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

The square root of 3102631225 is about 55701.2677144785. The cubic root of 3102631225 is about 1458.5121555593.

Adding to 3102631225 its reverse (5221362013), we get a palindrome (8323993238).

The spelling of 3102631225 in words is "three billion, one hundred two million, six hundred thirty-one thousand, two hundred twenty-five".