133331099 has 4 divisors (see below), whose sum is σ = 145452120. Its totient is φ = 121210080.

The previous prime is 133331083. The next prime is 133331129. The reversal of 133331099 is 990133331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133331099 - 2⁴ = 133331083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133331399) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6060494 + ... + 6060515.

It is an arithmetic number, because the mean of its divisors is an integer number (36363030).

Almost surely, 2^133331099 is an apocalyptic number.

133331099 is a deficient number, since it is larger than the sum of its proper divisors (12121021).

133331099 is a wasteful number, since it uses less digits than its factorization.

133331099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121020.

The product of its (nonzero) digits is 6561, while the sum is 32.

The square root of 133331099 is about 11546.9086339158. The cubic root of 133331099 is about 510.8701012619.

The spelling of 133331099 in words is "one hundred thirty-three million, three hundred thirty-one thousand, ninety-nine".