131512349 has 4 divisors (see below), whose sum is σ = 131535936. Its totient is φ = 131488764.

The previous prime is 131512343. The next prime is 131512369. The reversal of 131512349 is 943215131.

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.

It is a cyclic number.

It is not a de Polignac number, because 131512349 - 2¹⁶ = 131446813 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 (131512343) 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, 1772 + ... + 16314.

It is an arithmetic number, because the mean of its divisors is an integer number (32883984).

Almost surely, 2^131512349 is an apocalyptic number.

It is an amenable number.

131512349 is a deficient number, since it is larger than the sum of its proper divisors (23587).

131512349 is an equidigital number, since it uses as much as digits as its factorization.

131512349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23586.

The product of its digits is 3240, while the sum is 29.

The square root of 131512349 is about 11467.8833705266. The cubic root of 131512349 is about 508.5365569472.

The spelling of 131512349 in words is "one hundred thirty-one million, five hundred twelve thousand, three hundred forty-nine".