253131240144 has 40 divisors (see below), whose sum is σ = 654432211872. Its totient is φ = 84311294080.

The previous prime is 253131240097. The next prime is 253131240181. The reversal of 253131240144 is 441042131352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1993587 + ... + 2116754.

Almost surely, 2^253131240144 is an apocalyptic number.

253131240144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253131240144 is an abundant number, since it is smaller than the sum of its proper divisors (401300971728).

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

253131240144 is a wasteful number, since it uses less digits than its factorization.

253131240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111635 (or 4111629 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 253131240144 its reverse (441042131352), we get a palindrome (694173371496).

The spelling of 253131240144 in words is "two hundred fifty-three billion, one hundred thirty-one million, two hundred forty thousand, one hundred forty-four".