2103247 has 4 divisors (see below), whose sum is σ = 2119936. Its totient is φ = 2086560.

The previous prime is 2103239. The next prime is 2103301. The reversal of 2103247 is 7423012.

2103247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2103247 - 2³ = 2103239 is a prime.

It is a Duffinian number.

2103247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8154 + ... + 8407.

It is an arithmetic number, because the mean of its divisors is an integer number (529984).

2^2103247 is an apocalyptic number.

2103247 is a deficient number, since it is larger than the sum of its proper divisors (16689).

2103247 is a wasteful number, since it uses less digits than its factorization.

2103247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16688.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2103247 is about 1450.2575633314. The cubic root of 2103247 is about 128.1238831550.

Adding to 2103247 its reverse (7423012), we get a palindrome (9526259).

The spelling of 2103247 in words is "two million, one hundred three thousand, two hundred forty-seven".