133310399 has 4 divisors (see below), whose sum is σ = 133404480. Its totient is φ = 133216320.

The previous prime is 133310389. The next prime is 133310417. The reversal of 133310399 is 993013331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133310399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133310329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44882 + ... + 47759.

It is an arithmetic number, because the mean of its divisors is an integer number (33351120).

Almost surely, 2^133310399 is an apocalyptic number.

133310399 is a deficient number, since it is larger than the sum of its proper divisors (94081).

133310399 is an equidigital number, since it uses as much as digits as its factorization.

133310399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94080.

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

The square root of 133310399 is about 11546.0122553200. The cubic root of 133310399 is about 510.8436619228.

The spelling of 133310399 in words is "one hundred thirty-three million, three hundred ten thousand, three hundred ninety-nine".