131448539 has 8 divisors (see below), whose sum is σ = 140017248. Its totient is φ = 122972800.

The previous prime is 131448529. The next prime is 131448563. The reversal of 131448539 is 935844131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131448539 - 2²⁰ = 130399963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131448529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20312 + ... + 25989.

It is an arithmetic number, because the mean of its divisors is an integer number (17502156).

Almost surely, 2^131448539 is an apocalyptic number.

131448539 is a deficient number, since it is larger than the sum of its proper divisors (8568709).

131448539 is a wasteful number, since it uses less digits than its factorization.

131448539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46485.

The product of its digits is 51840, while the sum is 38.

The square root of 131448539 is about 11465.1009153867. The cubic root of 131448539 is about 508.4542960605.

The spelling of 131448539 in words is "one hundred thirty-one million, four hundred forty-eight thousand, five hundred thirty-nine".