1235791345597 has 2 divisors, whose sum is σ = 1235791345598. Its totient is φ = 1235791345596.

The previous prime is 1235791345553. The next prime is 1235791345601. The reversal of 1235791345597 is 7955431975321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1222375683321 + 13415662276 = 1105611^2 + 115826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1235791345597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235791345097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617895672798 + 617895672799.

It is an arithmetic number, because the mean of its divisors is an integer number (617895672799).

Almost surely, 2^{1235791345597} is an apocalyptic number.

It is an amenable number.

1235791345597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235791345597 is an equidigital number, since it uses as much as digits as its factorization.

1235791345597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35721000, while the sum is 61.

The spelling of 1235791345597 in words is "one trillion, two hundred thirty-five billion, seven hundred ninety-one million, three hundred forty-five thousand, five hundred ninety-seven".