239282081 has 4 divisors (see below), whose sum is σ = 241605312. Its totient is φ = 236958852.

The previous prime is 239282059. The next prime is 239282117. The reversal of 239282081 is 180282932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 239282081 - 2¹⁰ = 239281057 is a prime.

It is a super-2 number, since 2×239282081² = 114511828575381122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239282011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161461 + ... + 1161666.

It is an arithmetic number, because the mean of its divisors is an integer number (60401328).

Almost surely, 2^239282081 is an apocalyptic number.

It is an amenable number.

239282081 is a deficient number, since it is larger than the sum of its proper divisors (2323231).

239282081 is a wasteful number, since it uses less digits than its factorization.

239282081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323230.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 239282081 is about 15468.7452949488. The cubic root of 239282081 is about 620.8262319544.

The spelling of 239282081 in words is "two hundred thirty-nine million, two hundred eighty-two thousand, eighty-one".