225242154 has 16 divisors (see below), whose sum is σ = 500538240. Its totient is φ = 75080700.

The previous prime is 225242153. The next prime is 225242167. The reversal of 225242154 is 451242522.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (225242153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085522 + ... + 2085629.

It is an arithmetic number, because the mean of its divisors is an integer number (31283640).

Almost surely, 2^225242154 is an apocalyptic number.

225242154 is an abundant number, since it is smaller than the sum of its proper divisors (275296086).

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

225242154 is a wasteful number, since it uses less digits than its factorization.

225242154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171162 (or 4171156 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 225242154 is about 15008.0696293694. The cubic root of 225242154 is about 608.4383182959.

Adding to 225242154 its reverse (451242522), we get a palindrome (676484676).

The spelling of 225242154 in words is "two hundred twenty-five million, two hundred forty-two thousand, one hundred fifty-four".