1317246925 has 12 divisors (see below), whose sum is σ = 1634309460. Its totient is φ = 1053201920.

The previous prime is 1317246923. The next prime is 1317246937. The reversal of 1317246925 is 5296427131.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 68260644 + 1248986281 = 8262^2 + 35341^2 .

It is not a de Polignac number, because 1317246925 - 2¹ = 1317246923 is a prime.

It is a super-2 number, since 2×1317246925² = 3470278922843911250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317246923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33279 + ... + 61171.

It is an arithmetic number, because the mean of its divisors is an integer number (136192455).

Almost surely, 2^1317246925 is an apocalyptic number.

It is an amenable number.

1317246925 is a deficient number, since it is larger than the sum of its proper divisors (317062535).

1317246925 is a wasteful number, since it uses less digits than its factorization.

1317246925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29792 (or 29787 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 1317246925 is about 36293.8965254490. The cubic root of 1317246925 is about 1096.1981491797.

The spelling of 1317246925 in words is "one billion, three hundred seventeen million, two hundred forty-six thousand, nine hundred twenty-five".