239246139 has 16 divisors (see below), whose sum is σ = 348255360. Its totient is φ = 144888960.

The previous prime is 239246129. The next prime is 239246141. The reversal of 239246139 is 931642932.

It is not a de Polignac number, because 239246139 - 2⁴ = 239246123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239246097 and 239246106.

It is not an unprimeable number, because it can be changed into a prime (239246129) 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, 75907 + ... + 78995.

It is an arithmetic number, because the mean of its divisors is an integer number (21765960).

Almost surely, 2^239246139 is an apocalyptic number.

239246139 is a deficient number, since it is larger than the sum of its proper divisors (109009221).

239246139 is a wasteful number, since it uses less digits than its factorization.

239246139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450.

The product of its digits is 69984, while the sum is 39.

The square root of 239246139 is about 15467.5834893496. The cubic root of 239246139 is about 620.7951461139.

The spelling of 239246139 in words is "two hundred thirty-nine million, two hundred forty-six thousand, one hundred thirty-nine".