2015239 has 4 divisors (see below), whose sum is σ = 2084760. Its totient is φ = 1945720.

The previous prime is 2015213. The next prime is 2015267. The reversal of 2015239 is 9325102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2015239 - 2¹⁵ = 1982471 is a prime.

It is a super-2 number, since 2×2015239² = 8122376454242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34717 + ... + 34774.

It is an arithmetic number, because the mean of its divisors is an integer number (521190).

2^2015239 is an apocalyptic number.

2015239 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2015239 is a deficient number, since it is larger than the sum of its proper divisors (69521).

2015239 is an equidigital number, since it uses as much as digits as its factorization.

2015239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69520.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2015239 is about 1419.5911383212. The cubic root of 2015239 is about 126.3112946165.

The spelling of 2015239 in words is "two million, fifteen thousand, two hundred thirty-nine".