12365243 has 4 divisors (see below), whose sum is σ = 13489368. Its totient is φ = 11241120.

The previous prime is 12365207. The next prime is 12365261. The reversal of 12365243 is 34256321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34256321 = 11 ⋅3114211.

It is not a de Polignac number, because 12365243 - 2⁶ = 12365179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12365203) 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, 562046 + ... + 562067.

It is an arithmetic number, because the mean of its divisors is an integer number (3372342).

Almost surely, 2^12365243 is an apocalyptic number.

12365243 is a deficient number, since it is larger than the sum of its proper divisors (1124125).

12365243 is a wasteful number, since it uses less digits than its factorization.

12365243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124124.

The product of its digits is 4320, while the sum is 26.

The square root of 12365243 is about 3516.4247468132. The cubic root of 12365243 is about 231.2424445547.

The spelling of 12365243 in words is "twelve million, three hundred sixty-five thousand, two hundred forty-three".