9145740237197 has 2 divisors, whose sum is σ = 9145740237198. Its totient is φ = 9145740237196.

The previous prime is 9145740237181. The next prime is 9145740237209. The reversal of 9145740237197 is 7917320475419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9145658624041 + 81613156 = 3024179^2 + 9034^2 .

It is a cyclic number.

It is not a de Polignac number, because 9145740237197 - 2⁴ = 9145740237181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9145740237397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572870118598 + 4572870118599.

It is an arithmetic number, because the mean of its divisors is an integer number (4572870118599).

Almost surely, 2^{9145740237197} is an apocalyptic number.

It is an amenable number.

9145740237197 is a deficient number, since it is larger than the sum of its proper divisors (1).

9145740237197 is an equidigital number, since it uses as much as digits as its factorization.

9145740237197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 9145740237197 in words is "nine trillion, one hundred forty-five billion, seven hundred forty million, two hundred thirty-seven thousand, one hundred ninety-seven".