1197709361 has 2 divisors, whose sum is σ = 1197709362. Its totient is φ = 1197709360.

The previous prime is 1197709297. The next prime is 1197709363. The reversal of 1197709361 is 1639077911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1146228736 + 51480625 = 33856^2 + 7175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197709361 - 2⁶ = 1197709297 is a prime.

Together with 1197709363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1197709363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598854680 + 598854681.

It is an arithmetic number, because the mean of its divisors is an integer number (598854681).

Almost surely, 2^1197709361 is an apocalyptic number.

It is an amenable number.

1197709361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197709361 is an equidigital number, since it uses as much as digits as its factorization.

1197709361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 1197709361 is about 34607.9378322373. The cubic root of 1197709361 is about 1061.9819809494.

The spelling of 1197709361 in words is "one billion, one hundred ninety-seven million, seven hundred nine thousand, three hundred sixty-one".