1315423225 has 12 divisors (see below), whose sum is σ = 1646372304. Its totient is φ = 1042501520.

The previous prime is 1315423189. The next prime is 1315423237. The reversal of 1315423225 is 5223245131.

It is not a de Polignac number, because 1315423225 - 2⁷ = 1315423097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1315423193 and 1315423202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243199 + ... + 248548.

It is an arithmetic number, because the mean of its divisors is an integer number (137197692).

Almost surely, 2^1315423225 is an apocalyptic number.

It is an amenable number.

1315423225 is a deficient number, since it is larger than the sum of its proper divisors (330949079).

1315423225 is a wasteful number, since it uses less digits than its factorization.

1315423225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491864 (or 491859 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 1315423225 is about 36268.7637644296. The cubic root of 1315423225 is about 1095.6920279597.

Adding to 1315423225 its reverse (5223245131), we get a palindrome (6538668356).

The spelling of 1315423225 in words is "one billion, three hundred fifteen million, four hundred twenty-three thousand, two hundred twenty-five".