1297683241 has 2 divisors, whose sum is σ = 1297683242. Its totient is φ = 1297683240.

The previous prime is 1297683221. The next prime is 1297683263. The reversal of 1297683241 is 1423867921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122518016 + 175165225 = 33504^2 + 13235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297683241 - 2⁵ = 1297683209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1297683221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648841620 + 648841621.

It is an arithmetic number, because the mean of its divisors is an integer number (648841621).

Almost surely, 2^1297683241 is an apocalyptic number.

It is an amenable number.

1297683241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297683241 is an equidigital number, since it uses as much as digits as its factorization.

1297683241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 1297683241 is about 36023.3707612156. The cubic root of 1297683241 is about 1090.7441656760.

The spelling of 1297683241 in words is "one billion, two hundred ninety-seven million, six hundred eighty-three thousand, two hundred forty-one".