131984613 has 8 divisors (see below), whose sum is σ = 195532800. Its totient is φ = 87989724.

The previous prime is 131984599. The next prime is 131984687. The reversal of 131984613 is 316489131.

131984613 is a `hidden beast` number, since 1 + 3 + 198 + 461 + 3 = 666.

It is not a de Polignac number, because 131984613 - 2¹⁰ = 131983589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131984693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2444133 + ... + 2444186.

It is an arithmetic number, because the mean of its divisors is an integer number (24441600).

Almost surely, 2^131984613 is an apocalyptic number.

It is an amenable number.

131984613 is a deficient number, since it is larger than the sum of its proper divisors (63548187).

131984613 is an equidigital number, since it uses as much as digits as its factorization.

131984613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888328 (or 4888322 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 131984613 is about 11488.4556403374. The cubic root of 131984613 is about 509.1445520768.

The spelling of 131984613 in words is "one hundred thirty-one million, nine hundred eighty-four thousand, six hundred thirteen".