239525139 has 8 divisors (see below), whose sum is σ = 364990720. Its totient is φ = 136871496.

The previous prime is 239525137. The next prime is 239525141. The reversal of 239525139 is 931525932.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (239525137) and next prime (239525141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 239525139 - 2¹ = 239525137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239525097 and 239525106.

It is not an unprimeable number, because it can be changed into a prime (239525131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5702959 + ... + 5703000.

It is an arithmetic number, because the mean of its divisors is an integer number (45623840).

Almost surely, 2^239525139 is an apocalyptic number.

239525139 is a deficient number, since it is larger than the sum of its proper divisors (125465581).

239525139 is a wasteful number, since it uses less digits than its factorization.

239525139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405969.

The product of its digits is 72900, while the sum is 39.

The square root of 239525139 is about 15476.5997234535. The cubic root of 239525139 is about 621.0363684842.

The spelling of 239525139 in words is "two hundred thirty-nine million, five hundred twenty-five thousand, one hundred thirty-nine".