12501243 has 16 divisors (see below), whose sum is σ = 18659200. Its totient is φ = 8271720.

The previous prime is 12501193. The next prime is 12501257. The reversal of 12501243 is 34210521.

It is a de Polignac number, because none of the positive numbers 2^k-12501243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12501283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (1166200).

Almost surely, 2^12501243 is an apocalyptic number.

12501243 is a deficient number, since it is larger than the sum of its proper divisors (6157957).

12501243 is a wasteful number, since it uses less digits than its factorization.

12501243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479 (or 3473 counting only the distinct ones).

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

The square root of 12501243 is about 3535.7096883087. The cubic root of 12501243 is about 232.0871340856.

Adding to 12501243 its reverse (34210521), we get a palindrome (46711764).

The spelling of 12501243 in words is "twelve million, five hundred one thousand, two hundred forty-three".