131344451593 has 2 divisors, whose sum is σ = 131344451594. Its totient is φ = 131344451592.

The previous prime is 131344451507. The next prime is 131344451603. The reversal of 131344451593 is 395154443131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120514511104 + 10829940489 = 347152^2 + 104067^2 .

It is a cyclic number.

It is not a de Polignac number, because 131344451593 - 2²¹ = 131342354441 is a prime.

It is not a weakly prime, because it can be changed into another prime (131344452593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65672225796 + 65672225797.

It is an arithmetic number, because the mean of its divisors is an integer number (65672225797).

Almost surely, 2^131344451593 is an apocalyptic number.

It is an amenable number.

131344451593 is a deficient number, since it is larger than the sum of its proper divisors (1).

131344451593 is an equidigital number, since it uses as much as digits as its factorization.

131344451593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The spelling of 131344451593 in words is "one hundred thirty-one billion, three hundred forty-four million, four hundred fifty-one thousand, five hundred ninety-three".