131543371 has 4 divisors (see below), whose sum is σ = 137262672. Its totient is φ = 125824072.

The previous prime is 131543369. The next prime is 131543383. The reversal of 131543371 is 173345131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173345131 = 151 ⋅1147981.

It is a cyclic number.

It is not a de Polignac number, because 131543371 - 2¹ = 131543369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131543471) 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, 2859616 + ... + 2859661.

It is an arithmetic number, because the mean of its divisors is an integer number (34315668).

Almost surely, 2^131543371 is an apocalyptic number.

131543371 is a deficient number, since it is larger than the sum of its proper divisors (5719301).

131543371 is an equidigital number, since it uses as much as digits as its factorization.

131543371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719300.

The product of its digits is 3780, while the sum is 28.

The square root of 131543371 is about 11469.2358507444. The cubic root of 131543371 is about 508.5765394556.

The spelling of 131543371 in words is "one hundred thirty-one million, five hundred forty-three thousand, three hundred seventy-one".