133796564 has 24 divisors (see below), whose sum is σ = 261373728. Its totient is φ = 59401440.

The previous prime is 133796563. The next prime is 133796591. The reversal of 133796564 is 465697331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133796561) 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, 33467 + ... + 37250.

It is an arithmetic number, because the mean of its divisors is an integer number (10890572).

Almost surely, 2^133796564 is an apocalyptic number.

It is an amenable number.

133796564 is a deficient number, since it is larger than the sum of its proper divisors (127577164).

133796564 is a wasteful number, since it uses less digits than its factorization.

133796564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70775 (or 70773 counting only the distinct ones).

The product of its digits is 408240, while the sum is 44.

The square root of 133796564 is about 11567.0464683081. The cubic root of 133796564 is about 511.4639011442.

It can be divided in two parts, 133 and 796564, that added together give a palindrome (796697).

The spelling of 133796564 in words is "one hundred thirty-three million, seven hundred ninety-six thousand, five hundred sixty-four".