133115564 has 12 divisors (see below), whose sum is σ = 236901000. Its totient is φ = 65429568.

The previous prime is 133115551. The next prime is 133115579. The reversal of 133115564 is 465511331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281789 + ... + 282260.

It is an arithmetic number, because the mean of its divisors is an integer number (19741750).

Almost surely, 2^133115564 is an apocalyptic number.

It is an amenable number.

133115564 is a deficient number, since it is larger than the sum of its proper divisors (103785436).

133115564 is a wasteful number, since it uses less digits than its factorization.

133115564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564112 (or 564110 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 133115564 is about 11537.5718415965. The cubic root of 133115564 is about 510.5946722134.

Adding to 133115564 its reverse (465511331), we get a palindrome (598626895).

The spelling of 133115564 in words is "one hundred thirty-three million, one hundred fifteen thousand, five hundred sixty-four".