97188251597 has 2 divisors, whose sum is σ = 97188251598. Its totient is φ = 97188251596.

The previous prime is 97188251591. The next prime is 97188251639. The reversal of 97188251597 is 79515288179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96836726596 + 351525001 = 311186^2 + 18749^2 .

It is a cyclic number.

It is not a de Polignac number, because 97188251597 - 2⁴ = 97188251581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97188251591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48594125798 + 48594125799.

It is an arithmetic number, because the mean of its divisors is an integer number (48594125799).

Almost surely, 2^97188251597 is an apocalyptic number.

It is an amenable number.

97188251597 is a deficient number, since it is larger than the sum of its proper divisors (1).

97188251597 is an equidigital number, since it uses as much as digits as its factorization.

97188251597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12700800, while the sum is 62.

The spelling of 97188251597 in words is "ninety-seven billion, one hundred eighty-eight million, two hundred fifty-one thousand, five hundred ninety-seven".