1253616017 has 2 divisors, whose sum is σ = 1253616018. Its totient is φ = 1253616016.

The previous prime is 1253615977. The next prime is 1253616047. The reversal of 1253616017 is 7106163521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1072955536 + 180660481 = 32756^2 + 13441^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253616017 - 2¹⁰ = 1253614993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253616047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626808008 + 626808009.

It is an arithmetic number, because the mean of its divisors is an integer number (626808009).

Almost surely, 2^1253616017 is an apocalyptic number.

It is an amenable number.

1253616017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253616017 is an equidigital number, since it uses as much as digits as its factorization.

1253616017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1253616017 is about 35406.4403322333. The cubic root of 1253616017 is about 1078.2550746674.

Adding to 1253616017 its reverse (7106163521), we get a palindrome (8359779538).

The spelling of 1253616017 in words is "one billion, two hundred fifty-three million, six hundred sixteen thousand, seventeen".