239948121 has 32 divisors (see below), whose sum is σ = 386961408. Its totient is φ = 129286080.

The previous prime is 239948101. The next prime is 239948129. The reversal of 239948121 is 121849932.

239948121 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 239948121 - 2⁵ = 239948089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239948121.

It is not an unprimeable number, because it can be changed into a prime (239948129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30795 + ... + 37791.

It is an arithmetic number, because the mean of its divisors is an integer number (12092544).

Almost surely, 2^239948121 is an apocalyptic number.

239948121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

239948121 is a deficient number, since it is larger than the sum of its proper divisors (147013287).

239948121 is a wasteful number, since it uses less digits than its factorization.

239948121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7101.

The product of its digits is 31104, while the sum is 39.

The square root of 239948121 is about 15490.2589068098. The cubic root of 239948121 is about 621.4017201542.

The spelling of 239948121 in words is "two hundred thirty-nine million, nine hundred forty-eight thousand, one hundred twenty-one".