1297252199 has 2 divisors, whose sum is σ = 1297252200. Its totient is φ = 1297252198.

The previous prime is 1297252171. The next prime is 1297252309. The reversal of 1297252199 is 9912527921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1297252199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297252399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648626099 + 648626100.

It is an arithmetic number, because the mean of its divisors is an integer number (648626100).

Almost surely, 2^1297252199 is an apocalyptic number.

1297252199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297252199 is an equidigital number, since it uses as much as digits as its factorization.

1297252199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 47.

The square root of 1297252199 is about 36017.3874538396. The cubic root of 1297252199 is about 1090.6233841176.

The spelling of 1297252199 in words is "one billion, two hundred ninety-seven million, two hundred fifty-two thousand, one hundred ninety-nine".