225136902 has 8 divisors (see below), whose sum is σ = 450273816. Its totient is φ = 75045632.

The previous prime is 225136867. The next prime is 225136927. The reversal of 225136902 is 209631522.

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

225136902 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 225136902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18761403 + ... + 18761414.

It is an arithmetic number, because the mean of its divisors is an integer number (56284227).

Almost surely, 2^225136902 is an apocalyptic number.

225136902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225136902 is a wasteful number, since it uses less digits than its factorization.

225136902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37522822.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 225136902 is about 15004.5627060571. The cubic root of 225136902 is about 608.3435324159.

The spelling of 225136902 in words is "two hundred twenty-five million, one hundred thirty-six thousand, nine hundred two".