45197205197 has 2 divisors, whose sum is σ = 45197205198. Its totient is φ = 45197205196.

The previous prime is 45197205113. The next prime is 45197205199. The reversal of 45197205197 is 79150279154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43505199241 + 1692005956 = 208579^2 + 41134^2 .

It is a cyclic number.

It is not a de Polignac number, because 45197205197 - 2¹⁶ = 45197139661 is a prime.

Together with 45197205199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45197205199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22598602598 + 22598602599.

It is an arithmetic number, because the mean of its divisors is an integer number (22598602599).

Almost surely, 2^45197205197 is an apocalyptic number.

It is an amenable number.

45197205197 is a deficient number, since it is larger than the sum of its proper divisors (1).

45197205197 is an equidigital number, since it uses as much as digits as its factorization.

45197205197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 45197205197 in words is "forty-five billion, one hundred ninety-seven million, two hundred five thousand, one hundred ninety-seven".