1317964215 has 16 divisors (see below), whose sum is σ = 2115121536. Its totient is φ = 700788000.

The previous prime is 1317964213. The next prime is 1317964283. The reversal of 1317964215 is 5124697131.

It is not a de Polignac number, because 1317964215 - 2¹ = 1317964213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317964213) 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 15 ways as a sum of consecutive naturals, for example, 127761 + ... + 137690.

It is an arithmetic number, because the mean of its divisors is an integer number (132195096).

Almost surely, 2^1317964215 is an apocalyptic number.

1317964215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1317964215 is a deficient number, since it is larger than the sum of its proper divisors (797157321).

1317964215 is a wasteful number, since it uses less digits than its factorization.

1317964215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265790.

The product of its digits is 45360, while the sum is 39.

The square root of 1317964215 is about 36303.7768696316. The cubic root of 1317964215 is about 1096.3970866446.

The spelling of 1317964215 in words is "one billion, three hundred seventeen million, nine hundred sixty-four thousand, two hundred fifteen".