131365349 has 4 divisors (see below), whose sum is σ = 131399136. Its totient is φ = 131331564.

The previous prime is 131365309. The next prime is 131365361. The reversal of 131365349 is 943563131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 943563131 = 7 ⋅134794733.

It is a cyclic number.

It is not a de Polignac number, because 131365349 - 2²⁰ = 130316773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131365309) 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, 10169 + ... + 19134.

It is an arithmetic number, because the mean of its divisors is an integer number (32849784).

Almost surely, 2^131365349 is an apocalyptic number.

It is an amenable number.

131365349 is a deficient number, since it is larger than the sum of its proper divisors (33787).

131365349 is an equidigital number, since it uses as much as digits as its factorization.

131365349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33786.

The product of its digits is 29160, while the sum is 35.

The square root of 131365349 is about 11461.4723748740. The cubic root of 131365349 is about 508.3470113910.

The spelling of 131365349 in words is "one hundred thirty-one million, three hundred sixty-five thousand, three hundred forty-nine".