239212505 has 8 divisors (see below), whose sum is σ = 328062912. Its totient is φ = 164031408.

The previous prime is 239212487. The next prime is 239212529. The reversal of 239212505 is 505212932.

239212505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 239212505 - 2⁸ = 239212249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3417287 + ... + 3417356.

It is an arithmetic number, because the mean of its divisors is an integer number (41007864).

Almost surely, 2^239212505 is an apocalyptic number.

It is an amenable number.

239212505 is a deficient number, since it is larger than the sum of its proper divisors (88850407).

239212505 is an equidigital number, since it uses as much as digits as its factorization.

239212505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834655.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 239212505 is about 15466.4962095492. The cubic root of 239212505 is about 620.7660536173.

The spelling of 239212505 in words is "two hundred thirty-nine million, two hundred twelve thousand, five hundred five".