133090680 has 64 divisors (see below), whose sum is σ = 404768160. Its totient is φ = 35002368.

The previous prime is 133090679. The next prime is 133090691. The reversal of 133090680 is 86090331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1164 + ... + 16356.

Almost surely, 2^133090680 is an apocalyptic number.

133090680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133090680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202384080).

133090680 is an abundant number, since it is smaller than the sum of its proper divisors (271677480).

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

133090680 is a wasteful number, since it uses less digits than its factorization.

133090680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15280 (or 15276 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 133090680 is about 11536.4934013763. The cubic root of 133090680 is about 510.5628541719.

The spelling of 133090680 in words is "one hundred thirty-three million, ninety thousand, six hundred eighty".