225136523144 has 24 divisors (see below), whose sum is σ = 457100414010. Its totient is φ = 103909163904.

The previous prime is 225136523141. The next prime is 225136523191. The reversal of 225136523144 is 441325631522.

It can be written as a sum of positive squares in 3 ways, for example, as 74072154244 + 151064368900 = 272162^2 + 388670^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225136523098 and 225136523107.

It is not an unprimeable number, because it can be changed into a prime (225136523141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83259197 + ... + 83261900.

Almost surely, 2^225136523144 is an apocalyptic number.

It is an amenable number.

225136523144 is an abundant number, since it is smaller than the sum of its proper divisors (231963890866).

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

225136523144 is a wasteful number, since it uses less digits than its factorization.

225136523144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166521129 (or 166521112 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The spelling of 225136523144 in words is "two hundred twenty-five billion, one hundred thirty-six million, five hundred twenty-three thousand, one hundred forty-four".