133990179 has 16 divisors (see below), whose sum is σ = 185354400. Its totient is φ = 85994496.

The previous prime is 133990177. The next prime is 133990211. The reversal of 133990179 is 971099331.

It is not a de Polignac number, because 133990179 - 2¹ = 133990177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133990179.

It is not an unprimeable number, because it can be changed into a prime (133990177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30387 + ... + 34515.

It is an arithmetic number, because the mean of its divisors is an integer number (11584650).

Almost surely, 2^133990179 is an apocalyptic number.

133990179 is a deficient number, since it is larger than the sum of its proper divisors (51364221).

133990179 is a wasteful number, since it uses less digits than its factorization.

133990179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534.

The product of its (nonzero) digits is 45927, while the sum is 42.

The square root of 133990179 is about 11575.4126924270. The cubic root of 133990179 is about 511.7104928148.

The spelling of 133990179 in words is "one hundred thirty-three million, nine hundred ninety thousand, one hundred seventy-nine".