225279154 has 4 divisors (see below), whose sum is σ = 337918734. Its totient is φ = 112639576.

The previous prime is 225279149. The next prime is 225279157. The reversal of 225279154 is 451972522.

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., 127803025 + 97476129 = 11305^2 + 9873^2 .

It is not an unprimeable number, because it can be changed into a prime (225279157) 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 as a sum of consecutive naturals, namely, 56319787 + ... + 56319790.

Almost surely, 2^225279154 is an apocalyptic number.

225279154 is a deficient number, since it is larger than the sum of its proper divisors (112639580).

225279154 is a wasteful number, since it uses less digits than its factorization.

225279154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112639579.

The product of its digits is 50400, while the sum is 37.

The square root of 225279154 is about 15009.3022489388. The cubic root of 225279154 is about 608.4716320500.

It can be divided in two parts, 2252 and 79154, that added together give a triangular number (81406 = T₄₀₃).

The spelling of 225279154 in words is "two hundred twenty-five million, two hundred seventy-nine thousand, one hundred fifty-four".