239115961 has 16 divisors (see below), whose sum is σ = 277567360. Its totient is φ = 201761280.

The previous prime is 239115937. The next prime is 239115971. The reversal of 239115961 is 169511932.

It is a happy number.

239115961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 239115961 - 2⁹ = 239115449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239115961.

It is not an unprimeable number, because it can be changed into a prime (239115901) 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, 142435 + ... + 144103.

It is an arithmetic number, because the mean of its divisors is an integer number (17347960).

Almost surely, 2^239115961 is an apocalyptic number.

It is an amenable number.

239115961 is a deficient number, since it is larger than the sum of its proper divisors (38451399).

239115961 is a wasteful number, since it uses less digits than its factorization.

239115961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its digits is 14580, while the sum is 37.

The square root of 239115961 is about 15463.3748256970. The cubic root of 239115961 is about 620.6825305280.

The spelling of 239115961 in words is "two hundred thirty-nine million, one hundred fifteen thousand, nine hundred sixty-one".