131436613 has 24 divisors (see below), whose sum is σ = 170835840. Its totient is φ = 98868000.

The previous prime is 131436607. The next prime is 131436629. The reversal of 131436613 is 316634131.

It is a de Polignac number, because none of the positive numbers 2^k-131436613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131436113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21888 + ... + 27238.

It is an arithmetic number, because the mean of its divisors is an integer number (7118160).

Almost surely, 2^131436613 is an apocalyptic number.

It is an amenable number.

131436613 is a deficient number, since it is larger than the sum of its proper divisors (39399227).

131436613 is a wasteful number, since it uses less digits than its factorization.

131436613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409 (or 5398 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 131436613 is about 11464.5808035008. The cubic root of 131436613 is about 508.4389186629.

The spelling of 131436613 in words is "one hundred thirty-one million, four hundred thirty-six thousand, six hundred thirteen".