131616633 has 8 divisors (see below), whose sum is σ = 175739200. Its totient is φ = 87619248.

The previous prime is 131616623. The next prime is 131616647. The reversal of 131616633 is 336616131.

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

It is not a de Polignac number, because 131616633 - 2⁸ = 131616377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131616633.

It is not an unprimeable number, because it can be changed into a prime (131616613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28813 + ... + 33066.

It is an arithmetic number, because the mean of its divisors is an integer number (21967400).

Almost surely, 2^131616633 is an apocalyptic number.

It is an amenable number.

131616633 is a deficient number, since it is larger than the sum of its proper divisors (44122567).

131616633 is an equidigital number, since it uses as much as digits as its factorization.

131616633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62591.

The product of its digits is 5832, while the sum is 30.

The square root of 131616633 is about 11472.4292545215. The cubic root of 131616633 is about 508.6709377751.

The spelling of 131616633 in words is "one hundred thirty-one million, six hundred sixteen thousand, six hundred thirty-three".