133531534440604 has 12 divisors (see below), whose sum is σ = 233682301199200. Its totient is φ = 66765162669408.

The previous prime is 133531534440589. The next prime is 133531534440607. The reversal of 133531534440604 is 406044435135331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133531534440607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150640569 + ... + 151524400.

Almost surely, 2^{133531534440604} is an apocalyptic number.

It is an amenable number.

133531534440604 is a deficient number, since it is larger than the sum of its proper divisors (100150766758596).

133531534440604 is a wasteful number, since it uses less digits than its factorization.

133531534440604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302275452 (or 302275450 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 46.

Adding to 133531534440604 its reverse (406044435135331), we get a palindrome (539575969575935).

The spelling of 133531534440604 in words is "one hundred thirty-three trillion, five hundred thirty-one billion, five hundred thirty-four million, four hundred forty thousand, six hundred four".