133905264 has 40 divisors (see below), whose sum is σ = 360964992. Its totient is φ = 42694080.

The previous prime is 133905263. The next prime is 133905313. The reversal of 133905264 is 462509331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133905263) 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, 59542 + ... + 61749.

Almost surely, 2^133905264 is an apocalyptic number.

It is an amenable number.

133905264 is an abundant number, since it is smaller than the sum of its proper divisors (227059728).

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

133905264 is a wasteful number, since it uses less digits than its factorization.

133905264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121325 (or 121319 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 133905264 is about 11571.7442073354. The cubic root of 133905264 is about 511.6023727542.

The spelling of 133905264 in words is "one hundred thirty-three million, nine hundred five thousand, two hundred sixty-four".