133995264 has 72 divisors (see below), whose sum is σ = 384083952. Its totient is φ = 41226240.

The previous prime is 133995233. The next prime is 133995269. The reversal of 133995264 is 462599331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133995269) 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, 3274 + ... + 16694.

Almost surely, 2^133995264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133995264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192041976).

133995264 is an abundant number, since it is smaller than the sum of its proper divisors (250088688).

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

133995264 is a wasteful number, since it uses less digits than its factorization.

133995264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13453 (or 13439 counting only the distinct ones).

The product of its digits is 174960, while the sum is 42.

The square root of 133995264 is about 11575.6323369395. The cubic root of 133995264 is about 511.7169659632.

The spelling of 133995264 in words is "one hundred thirty-three million, nine hundred ninety-five thousand, two hundred sixty-four".