225138794 has 4 divisors (see below), whose sum is σ = 337708194. Its totient is φ = 112569396.

The previous prime is 225138787. The next prime is 225138829. The reversal of 225138794 is 497831522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 143688169 + 81450625 = 11987^2 + 9025^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56284697 + ... + 56284700.

Almost surely, 2^225138794 is an apocalyptic number.

225138794 is a deficient number, since it is larger than the sum of its proper divisors (112569400).

225138794 is a wasteful number, since it uses less digits than its factorization.

225138794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112569399.

The product of its digits is 120960, while the sum is 41.

The square root of 225138794 is about 15004.6257534135. The cubic root of 225138794 is about 608.3452365386.

The spelling of 225138794 in words is "two hundred twenty-five million, one hundred thirty-eight thousand, seven hundred ninety-four".