131331073 has 4 divisors (see below), whose sum is σ = 134385328. Its totient is φ = 128276820.

The previous prime is 131331061. The next prime is 131331119. The reversal of 131331073 is 370133131.

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 131331073 - 2⁹ = 131330561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131331023) 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, 1527063 + ... + 1527148.

It is an arithmetic number, because the mean of its divisors is an integer number (33596332).

Almost surely, 2^131331073 is an apocalyptic number.

It is an amenable number.

131331073 is a deficient number, since it is larger than the sum of its proper divisors (3054255).

131331073 is an equidigital number, since it uses as much as digits as its factorization.

131331073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054254.

The product of its (nonzero) digits is 567, while the sum is 22.

The square root of 131331073 is about 11459.9770069577. The cubic root of 131331073 is about 508.3027947135.

The spelling of 131331073 in words is "one hundred thirty-one million, three hundred thirty-one thousand, seventy-three".