1253115510197 has 2 divisors, whose sum is σ = 1253115510198. Its totient is φ = 1253115510196.

The previous prime is 1253115510187. The next prime is 1253115510211. The reversal of 1253115510197 is 7910155113521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1141737127441 + 111378382756 = 1068521^2 + 333734^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253115510197 - 2²⁸ = 1252847074741 is a prime.

It is a super-2 number, since 2×1253115510197² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253115510187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626557755098 + 626557755099.

It is an arithmetic number, because the mean of its divisors is an integer number (626557755099).

Almost surely, 2^{1253115510197} is an apocalyptic number.

It is an amenable number.

1253115510197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253115510197 is an equidigital number, since it uses as much as digits as its factorization.

1253115510197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 41.

The spelling of 1253115510197 in words is "one trillion, two hundred fifty-three billion, one hundred fifteen million, five hundred ten thousand, one hundred ninety-seven".