253134311436 has 120 divisors (see below), whose sum is σ = 693649457424. Its totient is φ = 80405498880.

The previous prime is 253134311413. The next prime is 253134311447. The reversal of 253134311436 is 634113431352.

253134311436 is a `hidden beast` number, since 2 + 531 + 3 + 4 + 3 + 114 + 3 + 6 = 666.

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 253134311436.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 349636 + ... + 792788.

Almost surely, 2^253134311436 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 253134311436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346824728712).

253134311436 is an abundant number, since it is smaller than the sum of its proper divisors (440515145988).

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

253134311436 is a wasteful number, since it uses less digits than its factorization.

253134311436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443253 (or 443242 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

Adding to 253134311436 its reverse (634113431352), we get a palindrome (887247742788).

The spelling of 253134311436 in words is "two hundred fifty-three billion, one hundred thirty-four million, three hundred eleven thousand, four hundred thirty-six".