133611316 has 24 divisors (see below), whose sum is σ = 238097664. Its totient is φ = 65592000.

The previous prime is 133611307. The next prime is 133611337. The reversal of 133611316 is 613116331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72381 + ... + 74203.

It is an arithmetic number, because the mean of its divisors is an integer number (9920736).

Almost surely, 2^133611316 is an apocalyptic number.

It is an amenable number.

133611316 is a deficient number, since it is larger than the sum of its proper divisors (104486348).

133611316 is a wasteful number, since it uses less digits than its factorization.

133611316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2149 counting only the distinct ones).

The product of its digits is 972, while the sum is 25.

The square root of 133611316 is about 11559.0361189850. The cubic root of 133611316 is about 511.2277430466.

Adding to 133611316 its reverse (613116331), we get a palindrome (746727647).

The spelling of 133611316 in words is "one hundred thirty-three million, six hundred eleven thousand, three hundred sixteen".