2103239 has 2 divisors, whose sum is σ = 2103240. Its totient is φ = 2103238.

The previous prime is 2103229. The next prime is 2103301. The reversal of 2103239 is 9323012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103239 is a prime.

It is a super-2 number, since 2×2103239² = 8847228582242, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2103239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051619 + 1051620.

It is an arithmetic number, because the mean of its divisors is an integer number (1051620).

2^2103239 is an apocalyptic number.

2103239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103239 is an equidigital number, since it uses as much as digits as its factorization.

2103239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 2103239 is about 1450.2548051980. The cubic root of 2103239 is about 128.1237207090.

The spelling of 2103239 in words is "two million, one hundred three thousand, two hundred thirty-nine".