225400923 has 24 divisors (see below), whose sum is σ = 355670640. Its totient is φ = 136416960.

The previous prime is 225400921. The next prime is 225400927. The reversal of 225400923 is 329004522.

It is not a de Polignac number, because 225400923 - 2¹ = 225400921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225400921) 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 23 ways as a sum of consecutive naturals, for example, 108765 + ... + 110817.

It is an arithmetic number, because the mean of its divisors is an integer number (14819610).

Almost surely, 2^225400923 is an apocalyptic number.

225400923 is a deficient number, since it is larger than the sum of its proper divisors (130269717).

225400923 is a wasteful number, since it uses less digits than its factorization.

225400923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179 (or 3176 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 225400923 is about 15013.3581519925. The cubic root of 225400923 is about 608.5812436661.

The spelling of 225400923 in words is "two hundred twenty-five million, four hundred thousand, nine hundred twenty-three".