131894597 has 2 divisors, whose sum is σ = 131894598. Its totient is φ = 131894596.

The previous prime is 131894591. The next prime is 131894629. The reversal of 131894597 is 795498131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126540001 + 5354596 = 11249^2 + 2314^2 .

It is an emirp because it is prime and its reverse (795498131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131894597 - 2⁶ = 131894533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131894591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65947298 + 65947299.

It is an arithmetic number, because the mean of its divisors is an integer number (65947299).

Almost surely, 2^131894597 is an apocalyptic number.

It is an amenable number.

131894597 is a deficient number, since it is larger than the sum of its proper divisors (1).

131894597 is an equidigital number, since it uses as much as digits as its factorization.

131894597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 131894597 is about 11484.5373002137. The cubic root of 131894597 is about 509.0287770175.

The spelling of 131894597 in words is "one hundred thirty-one million, eight hundred ninety-four thousand, five hundred ninety-seven".