131648943 has 4 divisors (see below), whose sum is σ = 175531928. Its totient is φ = 87765960.

The previous prime is 131648921. The next prime is 131648963. The reversal of 131648943 is 349846131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349846131 = 3 ⋅116615377.

It is not a de Polignac number, because 131648943 - 2⁵ = 131648911 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 (131648963) 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, 21941488 + ... + 21941493.

It is an arithmetic number, because the mean of its divisors is an integer number (43882982).

Almost surely, 2^131648943 is an apocalyptic number.

131648943 is a deficient number, since it is larger than the sum of its proper divisors (43882985).

131648943 is an equidigital number, since it uses as much as digits as its factorization.

131648943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43882984.

The product of its digits is 62208, while the sum is 39.

The square root of 131648943 is about 11473.8373267186. The cubic root of 131648943 is about 508.7125581816.

The spelling of 131648943 in words is "one hundred thirty-one million, six hundred forty-eight thousand, nine hundred forty-three".