31268225 has 12 divisors (see below), whose sum is σ = 39152256. Its totient is φ = 24769680.

The previous prime is 31268221. The next prime is 31268231. The reversal of 31268225 is 52286213.

It is not a de Polignac number, because 31268225 - 2² = 31268221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31268221) 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, 3497 + ... + 8646.

It is an arithmetic number, because the mean of its divisors is an integer number (3262688).

Almost surely, 2^31268225 is an apocalyptic number.

It is an amenable number.

31268225 is a deficient number, since it is larger than the sum of its proper divisors (7884031).

31268225 is a wasteful number, since it uses less digits than its factorization.

31268225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12256 (or 12251 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 31268225 is about 5591.7997997067. The cubic root of 31268225 is about 315.0414827371.

The spelling of 31268225 in words is "thirty-one million, two hundred sixty-eight thousand, two hundred twenty-five".