133131301 has 4 divisors (see below), whose sum is σ = 140962572. Its totient is φ = 125300032.

The previous prime is 133131293. The next prime is 133131343. The reversal of 133131301 is 103131331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100982401 + 32148900 = 10049^2 + 5670^2 .

It is a cyclic number.

It is not a de Polignac number, because 133131301 - 2³ = 133131293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133131371) by changing a digit.

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, 3915610 + ... + 3915643.

It is an arithmetic number, because the mean of its divisors is an integer number (35240643).

Almost surely, 2^133131301 is an apocalyptic number.

It is an amenable number.

133131301 is a deficient number, since it is larger than the sum of its proper divisors (7831271).

133131301 is an equidigital number, since it uses as much as digits as its factorization.

133131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831270.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 133131301 is about 11538.2538106942. The cubic root of 133131301 is about 510.6147923543.

Adding to 133131301 its reverse (103131331), we get a palindrome (236262632).

The spelling of 133131301 in words is "one hundred thirty-three million, one hundred thirty-one thousand, three hundred one".