133793399 has 8 divisors (see below), whose sum is σ = 135413760. Its totient is φ = 132183000.

The previous prime is 133793393. The next prime is 133793419. The reversal of 133793399 is 993397331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133793399 - 2¹⁶ = 133727863 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 (133793393) 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, 26522 + ... + 31160.

It is an arithmetic number, because the mean of its divisors is an integer number (16926720).

Almost surely, 2^133793399 is an apocalyptic number.

133793399 is a deficient number, since it is larger than the sum of its proper divisors (1620361).

133793399 is a wasteful number, since it uses less digits than its factorization.

133793399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4981.

The product of its digits is 413343, while the sum is 47.

The square root of 133793399 is about 11566.9096564294. The cubic root of 133793399 is about 511.4598681657.

The spelling of 133793399 in words is "one hundred thirty-three million, seven hundred ninety-three thousand, three hundred ninety-nine".