133136580 has 24 divisors (see below), whose sum is σ = 372782592. Its totient is φ = 35503072.

The previous prime is 133136527. The next prime is 133136603. The reversal of 133136580 is 85631331.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109412 + ... + 1109531.

It is an arithmetic number, because the mean of its divisors is an integer number (15532608).

Almost surely, 2^133136580 is an apocalyptic number.

133136580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133136580 is an abundant number, since it is smaller than the sum of its proper divisors (239646012).

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

133136580 is a wasteful number, since it uses less digits than its factorization.

133136580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218955 (or 2218953 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 133136580 is about 11538.4825692116. The cubic root of 133136580 is about 510.6215413303.

The spelling of 133136580 in words is "one hundred thirty-three million, one hundred thirty-six thousand, five hundred eighty".