131144833 has 8 divisors (see below), whose sum is σ = 131969952. Its totient is φ = 130322976.

The previous prime is 131144813. The next prime is 131144837. The reversal of 131144833 is 338441131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131144833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131144837) 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, 158166 + ... + 158992.

It is an arithmetic number, because the mean of its divisors is an integer number (16496244).

Almost surely, 2^131144833 is an apocalyptic number.

It is an amenable number.

131144833 is a deficient number, since it is larger than the sum of its proper divisors (825119).

131144833 is an equidigital number, since it uses as much as digits as its factorization.

131144833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631.

The product of its digits is 3456, while the sum is 28.

The square root of 131144833 is about 11451.8484534157. The cubic root of 131144833 is about 508.0624070829.

Adding to 131144833 its reverse (338441131), we get a palindrome (469585964).

The spelling of 131144833 in words is "one hundred thirty-one million, one hundred forty-four thousand, eight hundred thirty-three".