225712031 has 8 divisors (see below), whose sum is σ = 231306240. Its totient is φ = 220133592.

The previous prime is 225712013. The next prime is 225712033. The reversal of 225712031 is 130217522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225712031 - 2¹⁴ = 225695647 is a prime.

It is a super-2 number, since 2×225712031² = 101891841876289922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225711988 and 225712006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225712033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28226 + ... + 35328.

It is an arithmetic number, because the mean of its divisors is an integer number (28913280).

Almost surely, 2^225712031 is an apocalyptic number.

225712031 is a deficient number, since it is larger than the sum of its proper divisors (5594209).

225712031 is an equidigital number, since it uses as much as digits as its factorization.

225712031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7885.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 225712031 is about 15023.7156189805. The cubic root of 225712031 is about 608.8611115693.

Adding to 225712031 its reverse (130217522), we get a palindrome (355929553).

The spelling of 225712031 in words is "two hundred twenty-five million, seven hundred twelve thousand, thirty-one".