133339385 has 4 divisors (see below), whose sum is σ = 160007268. Its totient is φ = 106671504.

The previous prime is 133339363. The next prime is 133339399. The reversal of 133339385 is 583933331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583933331 = 181 ⋅3226151.

It can be written as a sum of positive squares in 2 ways, for example, as 72046144 + 61293241 = 8488^2 + 7829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133339385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 13333934 + ... + 13333943.

It is an arithmetic number, because the mean of its divisors is an integer number (40001817).

Almost surely, 2^133339385 is an apocalyptic number.

It is an amenable number.

133339385 is a deficient number, since it is larger than the sum of its proper divisors (26667883).

133339385 is an equidigital number, since it uses as much as digits as its factorization.

133339385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26667882.

The product of its digits is 87480, while the sum is 38.

The square root of 133339385 is about 11547.2674256726. The cubic root of 133339385 is about 510.8806838942.

The spelling of 133339385 in words is "one hundred thirty-three million, three hundred thirty-nine thousand, three hundred eighty-five".