531001100136 has 48 divisors (see below), whose sum is σ = 1437473403360. Its totient is φ = 163384952640.

The previous prime is 531001100111. The next prime is 531001100153. The reversal of 531001100136 is 631001100135.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65454660 + ... + 65462771.

It is an arithmetic number, because the mean of its divisors is an integer number (29947362570).

Almost surely, 2^531001100136 is an apocalyptic number.

It is an amenable number.

531001100136 is an abundant number, since it is smaller than the sum of its proper divisors (906472303224).

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

531001100136 is a wasteful number, since it uses less digits than its factorization.

531001100136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130917466 (or 130917449 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

Subtracting 531001100136 from its reverse (631001100135), we obtain a palindrome (99999999999).

The spelling of 531001100136 in words is "five hundred thirty-one billion, one million, one hundred thousand, one hundred thirty-six".