1323952539 has 32 divisors (see below), whose sum is σ = 2181763584. Its totient is φ = 695416320.

The previous prime is 1323952523. The next prime is 1323952559. The reversal of 1323952539 is 9352593231.

It is not a de Polignac number, because 1323952539 - 2⁴ = 1323952523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323952539.

It is not an unprimeable number, because it can be changed into a prime (1323952559) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 55732 + ... + 75854.

It is an arithmetic number, because the mean of its divisors is an integer number (68180112).

Almost surely, 2^1323952539 is an apocalyptic number.

1323952539 is a deficient number, since it is larger than the sum of its proper divisors (857811045).

1323952539 is a wasteful number, since it uses less digits than its factorization.

1323952539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20387.

The product of its digits is 218700, while the sum is 42.

The square root of 1323952539 is about 36386.1586183538. The cubic root of 1323952539 is about 1098.0551140049.

The spelling of 1323952539 in words is "one billion, three hundred twenty-three million, nine hundred fifty-two thousand, five hundred thirty-nine".