133679379 has 4 divisors (see below), whose sum is σ = 178239176. Its totient is φ = 89119584.

The previous prime is 133679341. The next prime is 133679411. The reversal of 133679379 is 973976331.

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

It is not a de Polignac number, because 133679379 - 2⁷ = 133679251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133674379) 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, 22279894 + ... + 22279899.

It is an arithmetic number, because the mean of its divisors is an integer number (44559794).

Almost surely, 2^133679379 is an apocalyptic number.

133679379 is a deficient number, since it is larger than the sum of its proper divisors (44559797).

133679379 is an equidigital number, since it uses as much as digits as its factorization.

133679379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44559796.

The product of its digits is 642978, while the sum is 48.

The square root of 133679379 is about 11561.9798910048. The cubic root of 133679379 is about 511.3145365612.

The spelling of 133679379 in words is "one hundred thirty-three million, six hundred seventy-nine thousand, three hundred seventy-nine".