225135324 has 36 divisors (see below), whose sum is σ = 574138656. Its totient is φ = 74379648.

The previous prime is 225135283. The next prime is 225135347. The reversal of 225135324 is 423531522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×225135324² = 101371828225169952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23604 + ... + 31739.

It is an arithmetic number, because the mean of its divisors is an integer number (15948296).

Almost surely, 2^225135324 is an apocalyptic number.

It is an amenable number.

225135324 is an abundant number, since it is smaller than the sum of its proper divisors (349003332).

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

225135324 is a wasteful number, since it uses less digits than its factorization.

225135324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55466 (or 55461 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 225135324 is about 15004.5101219600. The cubic root of 225135324 is about 608.3421111054.

Adding to 225135324 its reverse (423531522), we get a palindrome (648666846).

The spelling of 225135324 in words is "two hundred twenty-five million, one hundred thirty-five thousand, three hundred twenty-four".