1389014239 has 4 divisors (see below), whose sum is σ = 1389971656. Its totient is φ = 1388056824.

The previous prime is 1389014233. The next prime is 1389014267. The reversal of 1389014239 is 9324109831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1389014239 - 2²⁷ = 1254796511 is a prime.

It is a super-2 number, since 2×1389014239² = 3858721112289498242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389014233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476529 + ... + 479434.

It is an arithmetic number, because the mean of its divisors is an integer number (347492914).

Almost surely, 2^1389014239 is an apocalyptic number.

1389014239 is a deficient number, since it is larger than the sum of its proper divisors (957417).

1389014239 is an equidigital number, since it uses as much as digits as its factorization.

1389014239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957416.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1389014239 is about 37269.4813352695. The cubic root of 1389014239 is about 1115.7551478584.

The spelling of 1389014239 in words is "one billion, three hundred eighty-nine million, fourteen thousand, two hundred thirty-nine".