135664044 has 24 divisors (see below), whose sum is σ = 316743168. Its totient is φ = 45193680.

The previous prime is 135664033. The next prime is 135664049. The reversal of 135664044 is 440466531.

It is a junction number, because it is equal to n+sod(n) for n = 135663996 and 135664014.

It is not an unprimeable number, because it can be changed into a prime (135664049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29629 + ... + 33899.

It is an arithmetic number, because the mean of its divisors is an integer number (13197632).

Almost surely, 2^135664044 is an apocalyptic number.

It is an amenable number.

135664044 is an abundant number, since it is smaller than the sum of its proper divisors (181079124).

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

135664044 is a wasteful number, since it uses less digits than its factorization.

135664044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925 (or 6923 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 135664044 is about 11647.4908885991. The cubic root of 135664044 is about 513.8325192305.

The spelling of 135664044 in words is "one hundred thirty-five million, six hundred sixty-four thousand, forty-four".