323936139 has 16 divisors (see below), whose sum is σ = 457736832. Its totient is φ = 203069568.

The previous prime is 323936131. The next prime is 323936141. The reversal of 323936139 is 931639323.

It is a happy number.

It is not a de Polignac number, because 323936139 - 2³ = 323936131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323936097 and 323936106.

It is not an unprimeable number, because it can be changed into a prime (323936131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73492 + ... + 77774.

It is an arithmetic number, because the mean of its divisors is an integer number (28608552).

Almost surely, 2^323936139 is an apocalyptic number.

323936139 is a deficient number, since it is larger than the sum of its proper divisors (133800693).

323936139 is a wasteful number, since it uses less digits than its factorization.

323936139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786.

The product of its digits is 78732, while the sum is 39.

The square root of 323936139 is about 17998.2259959142. The cubic root of 323936139 is about 686.7834175075.

The spelling of 323936139 in words is "three hundred twenty-three million, nine hundred thirty-six thousand, one hundred thirty-nine".