1297822039 has 2 divisors, whose sum is σ = 1297822040. Its totient is φ = 1297822038.

The previous prime is 1297822003. The next prime is 1297822049. The reversal of 1297822039 is 9302287921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1297822039 - 2¹⁵ = 1297789271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1297821986 and 1297822004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297822049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648911019 + 648911020.

It is an arithmetic number, because the mean of its divisors is an integer number (648911020).

Almost surely, 2^1297822039 is an apocalyptic number.

1297822039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297822039 is an equidigital number, since it uses as much as digits as its factorization.

1297822039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1297822039 is about 36025.2972090446. The cubic root of 1297822039 is about 1090.7830523387.

The spelling of 1297822039 in words is "one billion, two hundred ninety-seven million, eight hundred twenty-two thousand, thirty-nine".