1315243016 has 16 divisors (see below), whose sum is σ = 2479708140. Its totient is φ = 653987520.

The previous prime is 1315243009. The next prime is 1315243019. The reversal of 1315243016 is 6103425131.

It can be written as a sum of positive squares in 2 ways, for example, as 957654916 + 357588100 = 30946^2 + 18910^2 .

It is a super-2 number, since 2×1315243016² = 3459728382273552512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1315243019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452711 + ... + 455606.

Almost surely, 2^1315243016 is an apocalyptic number.

It is an amenable number.

1315243016 is a deficient number, since it is larger than the sum of its proper divisors (1164465124).

1315243016 is a wasteful number, since it uses less digits than its factorization.

1315243016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908504 (or 908500 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1315243016 is about 36266.2793239119. The cubic root of 1315243016 is about 1095.6419901776.

Adding to 1315243016 its reverse (6103425131), we get a palindrome (7418668147).

The spelling of 1315243016 in words is "one billion, three hundred fifteen million, two hundred forty-three thousand, sixteen".