225136452 has 12 divisors (see below), whose sum is σ = 525318416. Its totient is φ = 75045480.

The previous prime is 225136427. The next prime is 225136511. The reversal of 225136452 is 254631522.

It is a tau number, because it is divible by the number of its divisors (12).

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, 9380674 + ... + 9380697.

Almost surely, 2^225136452 is an apocalyptic number.

It is an amenable number.

225136452 is an abundant number, since it is smaller than the sum of its proper divisors (300181964).

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

225136452 is a wasteful number, since it uses less digits than its factorization.

225136452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18761378 (or 18761376 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 225136452 is about 15004.5477106109. The cubic root of 225136452 is about 608.3431270999.

Adding to 225136452 its reverse (254631522), we get a palindrome (479767974).

The spelling of 225136452 in words is "two hundred twenty-five million, one hundred thirty-six thousand, four hundred fifty-two".