109445176974197 has 2 divisors, whose sum is σ = 109445176974198. Its totient is φ = 109445176974196.

The previous prime is 109445176974191. The next prime is 109445176974277. The reversal of 109445176974197 is 791479671544901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102208076259601 + 7237100714596 = 10109801^2 + 2690186^2 .

It is a cyclic number.

It is not a de Polignac number, because 109445176974197 - 2²² = 109445172779893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109445176974191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54722588487098 + 54722588487099.

It is an arithmetic number, because the mean of its divisors is an integer number (54722588487099).

Almost surely, 2^{109445176974197} is an apocalyptic number.

It is an amenable number.

109445176974197 is a deficient number, since it is larger than the sum of its proper divisors (1).

109445176974197 is an equidigital number, since it uses as much as digits as its factorization.

109445176974197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480090240, while the sum is 74.

The spelling of 109445176974197 in words is "one hundred nine trillion, four hundred forty-five billion, one hundred seventy-six million, nine hundred seventy-four thousand, one hundred ninety-seven".