131543313 has 8 divisors (see below), whose sum is σ = 191335776. Its totient is φ = 79723200.

The previous prime is 131543303. The next prime is 131543317. The reversal of 131543313 is 313345131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131543313 - 2⁵ = 131543281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131543317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1993048 + ... + 1993113.

It is an arithmetic number, because the mean of its divisors is an integer number (23916972).

Almost surely, 2^131543313 is an apocalyptic number.

It is an amenable number.

131543313 is a deficient number, since it is larger than the sum of its proper divisors (59792463).

131543313 is a wasteful number, since it uses less digits than its factorization.

131543313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986175.

The product of its digits is 1620, while the sum is 24.

The square root of 131543313 is about 11469.2333222409. The cubic root of 131543313 is about 508.5764647085.

Adding to 131543313 its reverse (313345131), we get a palindrome (444888444).

The spelling of 131543313 in words is "one hundred thirty-one million, five hundred forty-three thousand, three hundred thirteen".