133825939 has 4 divisors (see below), whose sum is σ = 144120256. Its totient is φ = 123531624.

The previous prime is 133825903. The next prime is 133825957. The reversal of 133825939 is 939528331.

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

It is a cyclic number.

It is not a de Polignac number, because 133825939 - 2¹¹ = 133823891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133825895 and 133825904.

It is not an unprimeable number, because it can be changed into a prime (133825999) 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, 5147139 + ... + 5147164.

It is an arithmetic number, because the mean of its divisors is an integer number (36030064).

Almost surely, 2^133825939 is an apocalyptic number.

133825939 is a deficient number, since it is larger than the sum of its proper divisors (10294317).

133825939 is a wasteful number, since it uses less digits than its factorization.

133825939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294316.

The product of its digits is 174960, while the sum is 43.

The square root of 133825939 is about 11568.3161696074. The cubic root of 133825939 is about 511.5013289930.

It can be divided in two parts, 13382 and 5939, that added together give a square (19321 = 139²).

The spelling of 133825939 in words is "one hundred thirty-three million, eight hundred twenty-five thousand, nine hundred thirty-nine".