131596973 has 2 divisors, whose sum is σ = 131596974. Its totient is φ = 131596972.

The previous prime is 131596951. The next prime is 131596987. The reversal of 131596973 is 379695131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130827844 + 769129 = 11438^2 + 877^2 .

It is an emirp because it is prime and its reverse (379695131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131596973 - 2¹⁸ = 131334829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131596273) 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 as a sum of consecutive naturals, namely, 65798486 + 65798487.

It is an arithmetic number, because the mean of its divisors is an integer number (65798487).

Almost surely, 2^131596973 is an apocalyptic number.

It is an amenable number.

131596973 is a deficient number, since it is larger than the sum of its proper divisors (1).

131596973 is an equidigital number, since it uses as much as digits as its factorization.

131596973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 44.

The square root of 131596973 is about 11471.5723856845. The cubic root of 131596973 is about 508.6456092423.

The spelling of 131596973 in words is "one hundred thirty-one million, five hundred ninety-six thousand, nine hundred seventy-three".