131323273 has 4 divisors (see below), whose sum is σ = 131737860. Its totient is φ = 130908688.

The previous prime is 131323259. The next prime is 131323279. The reversal of 131323273 is 372323131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 372323131 = 883 ⋅421657.

It can be written as a sum of positive squares in 2 ways, for example, as 63952009 + 67371264 = 7997^2 + 8208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131323273 is a prime.

It is a super-3 number, since 3×131323273³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131323279) 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, 206818 + ... + 207451.

It is an arithmetic number, because the mean of its divisors is an integer number (32934465).

Almost surely, 2^131323273 is an apocalyptic number.

It is an amenable number.

131323273 is a deficient number, since it is larger than the sum of its proper divisors (414587).

131323273 is an equidigital number, since it uses as much as digits as its factorization.

131323273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414586.

The product of its digits is 2268, while the sum is 25.

The square root of 131323273 is about 11459.6366870857. The cubic root of 131323273 is about 508.2927314939.

The spelling of 131323273 in words is "one hundred thirty-one million, three hundred twenty-three thousand, two hundred seventy-three".