1323715939 has 24 divisors (see below), whose sum is σ = 1673865648. Its totient is φ = 1037494080.

The previous prime is 1323715927. The next prime is 1323715949. The reversal of 1323715939 is 9395173231.

It is not a de Polignac number, because 1323715939 - 2²³ = 1315327331 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1323715895 and 1323715904.

It is not an unprimeable number, because it can be changed into a prime (1323715949) 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 23 ways as a sum of consecutive naturals, for example, 58449 + ... + 77869.

It is an arithmetic number, because the mean of its divisors is an integer number (69744402).

Almost surely, 2^1323715939 is an apocalyptic number.

1323715939 is a deficient number, since it is larger than the sum of its proper divisors (350149709).

1323715939 is a wasteful number, since it uses less digits than its factorization.

1323715939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19555 (or 19548 counting only the distinct ones).

The product of its digits is 153090, while the sum is 43.

The square root of 1323715939 is about 36382.9072367781. The cubic root of 1323715939 is about 1097.9896999486.

The spelling of 1323715939 in words is "one billion, three hundred twenty-three million, seven hundred fifteen thousand, nine hundred thirty-nine".