225914431 has 2 divisors, whose sum is σ = 225914432. Its totient is φ = 225914430.

The previous prime is 225914417. The next prime is 225914449. The reversal of 225914431 is 134419522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225914431 - 2⁵ = 225914399 is a prime.

It is a super-2 number, since 2×225914431² = 102074660268107522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225914393 and 225914402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225914401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112957215 + 112957216.

It is an arithmetic number, because the mean of its divisors is an integer number (112957216).

Almost surely, 2^225914431 is an apocalyptic number.

225914431 is a deficient number, since it is larger than the sum of its proper divisors (1).

225914431 is an equidigital number, since it uses as much as digits as its factorization.

225914431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 225914431 is about 15030.4501263269. The cubic root of 225914431 is about 609.0430494004.

The spelling of 225914431 in words is "two hundred twenty-five million, nine hundred fourteen thousand, four hundred thirty-one".