1313306215 has 16 divisors (see below), whose sum is σ = 1736669088. Its totient is φ = 947270016.

The previous prime is 1313306167. The next prime is 1313306221. The reversal of 1313306215 is 5126033131.

It is a cyclic number.

It is not a de Polignac number, because 1313306215 - 2¹⁹ = 1312781927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313306215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232144 + ... + 237733.

It is an arithmetic number, because the mean of its divisors is an integer number (108541818).

Almost surely, 2^1313306215 is an apocalyptic number.

1313306215 is a deficient number, since it is larger than the sum of its proper divisors (423362873).

1313306215 is a wasteful number, since it uses less digits than its factorization.

1313306215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469938.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1313306215 is about 36239.5669814086. The cubic root of 1313306215 is about 1095.1039190241.

Adding to 1313306215 its reverse (5126033131), we get a palindrome (6439339346).

The spelling of 1313306215 in words is "one billion, three hundred thirteen million, three hundred six thousand, two hundred fifteen".