133090330 has 16 divisors (see below), whose sum is σ = 240084000. Its totient is φ = 53120272.

The previous prime is 133090303. The next prime is 133090337. The reversal of 133090330 is 33090331.

It is not an unprimeable number, because it can be changed into a prime (133090337) 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, 9580 + ... + 18919.

It is an arithmetic number, because the mean of its divisors is an integer number (15005250).

Almost surely, 2^133090330 is an apocalyptic number.

133090330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133090330 is a deficient number, since it is larger than the sum of its proper divisors (106993670).

133090330 is a wasteful number, since it uses less digits than its factorization.

133090330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28973.

The product of its (nonzero) digits is 729, while the sum is 22.

The square root of 133090330 is about 11536.4782321123. The cubic root of 133090330 is about 510.5624066145.

Subtracting from 133090330 its reverse (33090331), we obtain a palindrome (99999999).

The spelling of 133090330 in words is "one hundred thirty-three million, ninety thousand, three hundred thirty".