135044244631 has 16 divisors (see below), whose sum is σ = 141500265984. Its totient is φ = 128637694944.

The previous prime is 135044244611. The next prime is 135044244679. The reversal of 135044244631 is 136442440531.

It is a cyclic number.

It is not a de Polignac number, because 135044244631 - 2³³ = 126454310039 is a prime.

It is a super-2 number, since 2×135044244631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135044244611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8557110 + ... + 8572876.

It is an arithmetic number, because the mean of its divisors is an integer number (8843766624).

Almost surely, 2^135044244631 is an apocalyptic number.

135044244631 is a deficient number, since it is larger than the sum of its proper divisors (6456021353).

135044244631 is a wasteful number, since it uses less digits than its factorization.

135044244631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17310.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 135044244631 in words is "one hundred thirty-five billion, forty-four million, two hundred forty-four thousand, six hundred thirty-one".