239491071 has 6 divisors (see below), whose sum is σ = 345931560. Its totient is φ = 159660708.

The previous prime is 239491039. The next prime is 239491093. The reversal of 239491071 is 170194932.

It is not a de Polignac number, because 239491071 - 2⁵ = 239491039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239491871) 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 5 ways as a sum of consecutive naturals, for example, 13305051 + ... + 13305068.

It is an arithmetic number, because the mean of its divisors is an integer number (57655260).

Almost surely, 2^239491071 is an apocalyptic number.

239491071 is a deficient number, since it is larger than the sum of its proper divisors (106440489).

239491071 is a wasteful number, since it uses less digits than its factorization.

239491071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26610125 (or 26610122 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 239491071 is about 15475.4990549578. The cubic root of 239491071 is about 621.0069234605.

The spelling of 239491071 in words is "two hundred thirty-nine million, four hundred ninety-one thousand, seventy-one".