133264880 has 40 divisors (see below), whose sum is σ = 354105312. Its totient is φ = 45690624.

The previous prime is 133264867. The next prime is 133264891. The reversal of 133264880 is 88462331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 133264880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118427 + ... + 119546.

Almost surely, 2^133264880 is an apocalyptic number.

133264880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133264880 is an abundant number, since it is smaller than the sum of its proper divisors (220840432).

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

133264880 is a wasteful number, since it uses less digits than its factorization.

133264880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237993 (or 237987 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 133264880 is about 11544.0408869685. The cubic root of 133264880 is about 510.7855125713.

The spelling of 133264880 in words is "one hundred thirty-three million, two hundred sixty-four thousand, eight hundred eighty".