1315173425 has 12 divisors (see below), whose sum is σ = 1658457840. Its totient is φ = 1034304720.

The previous prime is 1315173401. The next prime is 1315173427. The reversal of 1315173425 is 5243715131.

It is not a de Polignac number, because 1315173425 - 2¹⁸ = 1314911281 is a prime.

It is a super-2 number, since 2×1315173425² = 3459362275652461250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1315173391 and 1315173400.

It is not an unprimeable number, because it can be changed into a prime (1315173427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444347 + ... + 447296.

It is an arithmetic number, because the mean of its divisors is an integer number (138204820).

Almost surely, 2^1315173425 is an apocalyptic number.

It is an amenable number.

1315173425 is a deficient number, since it is larger than the sum of its proper divisors (343284415).

1315173425 is an equidigital number, since it uses as much as digits as its factorization.

1315173425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891712 (or 891707 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 1315173425 is about 36265.3198662303. The cubic root of 1315173425 is about 1095.6226659499.

Adding to 1315173425 its reverse (5243715131), we get a palindrome (6558888556).

The spelling of 1315173425 in words is "one billion, three hundred fifteen million, one hundred seventy-three thousand, four hundred twenty-five".