31225227 has 16 divisors (see below), whose sum is σ = 47809920. Its totient is φ = 17928000.

The previous prime is 31225213. The next prime is 31225247. The reversal of 31225227 is 72252213.

It is a happy number.

It is not a de Polignac number, because 31225227 - 2⁶ = 31225163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31225197 and 31225206.

It is not an unprimeable number, because it can be changed into a prime (31225247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24274 + ... + 25527.

It is an arithmetic number, because the mean of its divisors is an integer number (2988120).

Almost surely, 2^31225227 is an apocalyptic number.

31225227 is a deficient number, since it is larger than the sum of its proper divisors (16584693).

31225227 is a wasteful number, since it uses less digits than its factorization.

31225227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49834.

The product of its digits is 1680, while the sum is 24.

The square root of 31225227 is about 5587.9537399660. The cubic root of 31225227 is about 314.8970084059.

The spelling of 31225227 in words is "thirty-one million, two hundred twenty-five thousand, two hundred twenty-seven".