133183379 has 4 divisors (see below), whose sum is σ = 152209584. Its totient is φ = 114157176.

The previous prime is 133183367. The next prime is 133183417. The reversal of 133183379 is 973381331.

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

It is not a de Polignac number, because 133183379 - 2⁸ = 133183123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133183279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9513092 + ... + 9513105.

It is an arithmetic number, because the mean of its divisors is an integer number (38052396).

Almost surely, 2^133183379 is an apocalyptic number.

133183379 is a deficient number, since it is larger than the sum of its proper divisors (19026205).

133183379 is an equidigital number, since it uses as much as digits as its factorization.

133183379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19026204.

The product of its digits is 40824, while the sum is 38.

The square root of 133183379 is about 11540.5103440013. The cubic root of 133183379 is about 510.6813640529.

The spelling of 133183379 in words is "one hundred thirty-three million, one hundred eighty-three thousand, three hundred seventy-nine".