133365725 has 6 divisors (see below), whose sum is σ = 165373530. Its totient is φ = 106692560.

The previous prime is 133365721. The next prime is 133365737. The reversal of 133365725 is 527563331.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 26822041 + 106543684 = 5179^2 + 10322^2 .

It is not a de Polignac number, because 133365725 - 2² = 133365721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133365721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2667290 + ... + 2667339.

It is an arithmetic number, because the mean of its divisors is an integer number (27562255).

Almost surely, 2^133365725 is an apocalyptic number.

It is an amenable number.

133365725 is a deficient number, since it is larger than the sum of its proper divisors (32007805).

133365725 is an equidigital number, since it uses as much as digits as its factorization.

133365725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334639 (or 5334634 counting only the distinct ones).

The product of its digits is 56700, while the sum is 35.

The square root of 133365725 is about 11548.4078989270. The cubic root of 133365725 is about 510.9143216455.

The spelling of 133365725 in words is "one hundred thirty-three million, three hundred sixty-five thousand, seven hundred twenty-five".