131645592893 has 2 divisors, whose sum is σ = 131645592894. Its totient is φ = 131645592892.

The previous prime is 131645592863. The next prime is 131645592997. The reversal of 131645592893 is 398295546131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129584160484 + 2061432409 = 359978^2 + 45403^2 .

It is a cyclic number.

It is not a de Polignac number, because 131645592893 - 2¹⁸ = 131645330749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131645592803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65822796446 + 65822796447.

It is an arithmetic number, because the mean of its divisors is an integer number (65822796447).

Almost surely, 2^131645592893 is an apocalyptic number.

It is an amenable number.

131645592893 is a deficient number, since it is larger than the sum of its proper divisors (1).

131645592893 is an equidigital number, since it uses as much as digits as its factorization.

131645592893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 56.

The spelling of 131645592893 in words is "one hundred thirty-one billion, six hundred forty-five million, five hundred ninety-two thousand, eight hundred ninety-three".