133790979 has 8 divisors (see below), whose sum is σ = 203872000. Its totient is φ = 76451976.

The previous prime is 133790929. The next prime is 133791013. The reversal of 133790979 is 979097331.

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

It is not a de Polignac number, because 133790979 - 2²¹ = 131693827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133790929) 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 7 ways as a sum of consecutive naturals, for example, 3185479 + ... + 3185520.

It is an arithmetic number, because the mean of its divisors is an integer number (25484000).

Almost surely, 2^133790979 is an apocalyptic number.

133790979 is a deficient number, since it is larger than the sum of its proper divisors (70081021).

133790979 is an equidigital number, since it uses as much as digits as its factorization.

133790979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371009.

The product of its (nonzero) digits is 321489, while the sum is 48.

The square root of 133790979 is about 11566.8050472030. The cubic root of 133790979 is about 511.4567844551.

The spelling of 133790979 in words is "one hundred thirty-three million, seven hundred ninety thousand, nine hundred seventy-nine".