131843473 has 4 divisors (see below), whose sum is σ = 132605748. Its totient is φ = 131081200.

The previous prime is 131843441. The next prime is 131843479. The reversal of 131843473 is 374348131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374348131 = 157 ⋅2384383.

It can be written as a sum of positive squares in 2 ways, for example, as 113465104 + 18378369 = 10652^2 + 4287^2 .

It is a cyclic number.

It is not a de Polignac number, because 131843473 - 2⁵ = 131843441 is a prime.

It is a super-3 number, since 3×131843473³ (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 (131843479) 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, 380878 + ... + 381223.

It is an arithmetic number, because the mean of its divisors is an integer number (33151437).

Almost surely, 2^131843473 is an apocalyptic number.

It is an amenable number.

131843473 is a deficient number, since it is larger than the sum of its proper divisors (762275).

131843473 is an equidigital number, since it uses as much as digits as its factorization.

131843473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762274.

The product of its digits is 24192, while the sum is 34.

The square root of 131843473 is about 11482.3113091398. The cubic root of 131843473 is about 508.9629998721.

The spelling of 131843473 in words is "one hundred thirty-one million, eight hundred forty-three thousand, four hundred seventy-three".