225642154 has 8 divisors (see below), whose sum is σ = 338571360. Its totient is φ = 112785036.

The previous prime is 225642143. The next prime is 225642161. The reversal of 225642154 is 451246522.

225642154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9364 + ... + 23215.

It is an arithmetic number, because the mean of its divisors is an integer number (42321420).

Almost surely, 2^225642154 is an apocalyptic number.

225642154 is a deficient number, since it is larger than the sum of its proper divisors (112929206).

225642154 is a wasteful number, since it uses less digits than its factorization.

225642154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36044.

The product of its digits is 19200, while the sum is 31.

The square root of 225642154 is about 15021.3898824310. The cubic root of 225642154 is about 608.7982737151.

Adding to 225642154 its reverse (451246522), we get a palindrome (676888676).

The spelling of 225642154 in words is "two hundred twenty-five million, six hundred forty-two thousand, one hundred fifty-four".