10005243 has 4 divisors (see below), whose sum is σ = 13340328. Its totient is φ = 6670160.

The previous prime is 10005241. The next prime is 10005251. The reversal of 10005243 is 34250001.

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 10005243 - 2¹ = 10005241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10005241) 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, 1667538 + ... + 1667543.

It is an arithmetic number, because the mean of its divisors is an integer number (3335082).

Almost surely, 2^10005243 is an apocalyptic number.

10005243 is a deficient number, since it is larger than the sum of its proper divisors (3335085).

10005243 is an equidigital number, since it uses as much as digits as its factorization.

10005243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335084.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 10005243 is about 3163.1065426255. The cubic root of 10005243 is about 215.4811147617.

Adding to 10005243 its reverse (34250001), we get a palindrome (44255244).

The spelling of 10005243 in words is "ten million, five thousand, two hundred forty-three".