1297130841 has 14 divisors (see below), whose sum is σ = 1944807690. Its totient is φ = 864753408.

The previous prime is 1297130837. The next prime is 1297130927. The reversal of 1297130841 is 1480317921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1148193225 + 148937616 = 33885^2 + 12204^2 .

It is not a de Polignac number, because 1297130841 - 2² = 1297130837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1297130796 and 1297130805.

It is not an unprimeable number, because it can be changed into a prime (1297130641) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 888936 + ... + 890393.

It is an arithmetic number, because the mean of its divisors is an integer number (138914835).

Almost surely, 2^1297130841 is an apocalyptic number.

It is an amenable number.

1297130841 is a deficient number, since it is larger than the sum of its proper divisors (647676849).

1297130841 is an frugal number, since it uses more digits than its factorization.

1297130841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779347 (or 1779332 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1297130841 is about 36015.7027003500. The cubic root of 1297130841 is about 1090.5893737686.

The spelling of 1297130841 in words is "one billion, two hundred ninety-seven million, one hundred thirty thousand, eight hundred forty-one".