10243215 has 12 divisors (see below), whose sum is σ = 17754984. Its totient is φ = 5463024.

The previous prime is 10243213. The next prime is 10243229. The reversal of 10243215 is 51234201.

Added to its reverse (51234201) it gives a triangular number (61477416 = T₁₁₀₈₈).

10243215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10243215 - 2¹ = 10243213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10243213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113769 + ... + 113858.

It is an arithmetic number, because the mean of its divisors is an integer number (1479582).

Almost surely, 2^10243215 is an apocalyptic number.

10243215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10243215 is a deficient number, since it is larger than the sum of its proper divisors (7511769).

10243215 is a wasteful number, since it uses less digits than its factorization.

10243215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227638 (or 227635 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 10243215 is about 3200.5023043266. The cubic root of 10243215 is about 217.1761331283.

Adding to 10243215 its reverse (51234201), we get a palindrome (61477416).

The spelling of 10243215 in words is "ten million, two hundred forty-three thousand, two hundred fifteen".