225140736 has 56 divisors (see below), whose sum is σ = 600404184. Its totient is φ = 75038720.

The previous prime is 225140701. The next prime is 225140749. The reversal of 225140736 is 637041522.

It is a congruent number.

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, 19996 + ... + 29156.

Almost surely, 2^225140736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225140736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300202092).

225140736 is an abundant number, since it is smaller than the sum of its proper divisors (375263448).

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

225140736 is an frugal number, since it uses more digits than its factorization.

225140736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190 (or 9166 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 225140736 is about 15004.6904666508. The cubic root of 225140736 is about 608.3469856864.

The spelling of 225140736 in words is "two hundred twenty-five million, one hundred forty thousand, seven hundred thirty-six".