225782136 has 48 divisors (see below), whose sum is σ = 616926960. Its totient is φ = 74592000.

The previous prime is 225782129. The next prime is 225782153. The reversal of 225782136 is 631287522.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 225782136.

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, 5740 + ... + 22011.

It is an arithmetic number, because the mean of its divisors is an integer number (12852645).

Almost surely, 2^225782136 is an apocalyptic number.

It is an amenable number.

225782136 is an abundant number, since it is smaller than the sum of its proper divisors (391144824).

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

225782136 is a wasteful number, since it uses less digits than its factorization.

225782136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27876 (or 27869 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 225782136 is about 15026.0485823785. The cubic root of 225782136 is about 608.9241414244.

225782136 divided by its sum of digits (36) gives a palindrome (6271726).

The spelling of 225782136 in words is "two hundred twenty-five million, seven hundred eighty-two thousand, one hundred thirty-six".