133320992 has 24 divisors (see below), whose sum is σ = 299972736. Its totient is φ = 57137472.

The previous prime is 133320961. The next prime is 133320997. The reversal of 133320992 is 299023331.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (133320997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297368 + ... + 297815.

It is an arithmetic number, because the mean of its divisors is an integer number (12498864).

Almost surely, 2^133320992 is an apocalyptic number.

It is an amenable number.

133320992 is an abundant number, since it is smaller than the sum of its proper divisors (166651744).

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

133320992 is an equidigital number, since it uses as much as digits as its factorization.

133320992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595200 (or 595192 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 133320992 is about 11546.4709760169. The cubic root of 133320992 is about 510.8571923091.

The spelling of 133320992 in words is "one hundred thirty-three million, three hundred twenty thousand, nine hundred ninety-two".