1260801697 has 2 divisors, whose sum is σ = 1260801698. Its totient is φ = 1260801696.

The previous prime is 1260801691. The next prime is 1260801721. The reversal of 1260801697 is 7961080621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1141358656 + 119443041 = 33784^2 + 10929^2 .

It is a cyclic number.

It is not a de Polignac number, because 1260801697 - 2¹¹ = 1260799649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1260801691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630400848 + 630400849.

It is an arithmetic number, because the mean of its divisors is an integer number (630400849).

Almost surely, 2^1260801697 is an apocalyptic number.

It is an amenable number.

1260801697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260801697 is an equidigital number, since it uses as much as digits as its factorization.

1260801697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1260801697 is about 35507.7695300620. The cubic root of 1260801697 is about 1080.3113234287.

The spelling of 1260801697 in words is "one billion, two hundred sixty million, eight hundred one thousand, six hundred ninety-seven".