131055013 has 4 divisors (see below), whose sum is σ = 134102848. Its totient is φ = 128007180.

The previous prime is 131055007. The next prime is 131055017. The reversal of 131055013 is 310550131.

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: 310550131 = 10193 ⋅30467.

It is a cyclic number.

It is not a de Polignac number, because 131055013 - 2⁹ = 131054501 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 (131055017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523853 + ... + 1523938.

It is an arithmetic number, because the mean of its divisors is an integer number (33525712).

Almost surely, 2^131055013 is an apocalyptic number.

It is an amenable number.

131055013 is a deficient number, since it is larger than the sum of its proper divisors (3047835).

131055013 is an equidigital number, since it uses as much as digits as its factorization.

131055013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047834.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 131055013 is about 11447.9261440664. The cubic root of 131055013 is about 507.9463913607.

The spelling of 131055013 in words is "one hundred thirty-one million, fifty-five thousand, thirteen".