131345593 has 2 divisors, whose sum is σ = 131345594. Its totient is φ = 131345592.

The previous prime is 131345581. The next prime is 131345633. The reversal of 131345593 is 395543131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107060409 + 24285184 = 10347^2 + 4928^2 .

It is a cyclic number.

It is not a de Polignac number, because 131345593 - 2⁵ = 131345561 is a prime.

It is not a weakly prime, because it can be changed into another prime (131345503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65672796 + 65672797.

It is an arithmetic number, because the mean of its divisors is an integer number (65672797).

Almost surely, 2^131345593 is an apocalyptic number.

It is an amenable number.

131345593 is a deficient number, since it is larger than the sum of its proper divisors (1).

131345593 is an equidigital number, since it uses as much as digits as its factorization.

131345593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 131345593 is about 11460.6104985729. The cubic root of 131345593 is about 508.3215267227.

The spelling of 131345593 in words is "one hundred thirty-one million, three hundred forty-five thousand, five hundred ninety-three".