225242142 has 32 divisors (see below), whose sum is σ = 461970432. Its totient is φ = 73179744.

The previous prime is 225242107. The next prime is 225242153. The reversal of 225242142 is 241242522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72648 + ... + 75684.

It is an arithmetic number, because the mean of its divisors is an integer number (14436576).

Almost surely, 2^225242142 is an apocalyptic number.

225242142 is an abundant number, since it is smaller than the sum of its proper divisors (236728290).

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

225242142 is a wasteful number, since it uses less digits than its factorization.

225242142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352.

The product of its digits is 2560, while the sum is 24.

The square root of 225242142 is about 15008.0692295845. The cubic root of 225242142 is about 608.4383074908.

Adding to 225242142 its reverse (241242522), we get a palindrome (466484664).

The spelling of 225242142 in words is "two hundred twenty-five million, two hundred forty-two thousand, one hundred forty-two".