131365567 has 4 divisors (see below), whose sum is σ = 131400040. Its totient is φ = 131331096.

The previous prime is 131365561. The next prime is 131365573. The reversal of 131365567 is 765563131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (131365561) and next prime (131365573).

It is a cyclic number.

It is not a de Polignac number, because 131365567 - 2⁷ = 131365439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131365561) 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 3 ways as a sum of consecutive naturals, for example, 10692 + ... + 19417.

It is an arithmetic number, because the mean of its divisors is an integer number (32850010).

Almost surely, 2^131365567 is an apocalyptic number.

131365567 is a deficient number, since it is larger than the sum of its proper divisors (34473).

131365567 is an equidigital number, since it uses as much as digits as its factorization.

131365567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34472.

The product of its digits is 56700, while the sum is 37.

The square root of 131365567 is about 11461.4818849920. The cubic root of 131365567 is about 508.3472925905.

The spelling of 131365567 in words is "one hundred thirty-one million, three hundred sixty-five thousand, five hundred sixty-seven".