1260583897 has 2 divisors, whose sum is σ = 1260583898. Its totient is φ = 1260583896.

The previous prime is 1260583879. The next prime is 1260583901. The reversal of 1260583897 is 7983850621.

Together with previous prime (1260583879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 937339456 + 323244441 = 30616^2 + 17979^2 .

It is an emirp because it is prime and its reverse (7983850621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1260583897 - 2⁷ = 1260583769 is a prime.

It is a super-2 number, since 2×1260583897² = 3178143522751413218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1260583897.

It is not a weakly prime, because it can be changed into another prime (1260583837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630291948 + 630291949.

It is an arithmetic number, because the mean of its divisors is an integer number (630291949).

Almost surely, 2^1260583897 is an apocalyptic number.

It is an amenable number.

1260583897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260583897 is an equidigital number, since it uses as much as digits as its factorization.

1260583897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 1260583897 is about 35504.7024631949. The cubic root of 1260583897 is about 1080.2491129170.

The spelling of 1260583897 in words is "one billion, two hundred sixty million, five hundred eighty-three thousand, eight hundred ninety-seven".