12543201 has 32 divisors (see below), whose sum is σ = 20476800. Its totient is φ = 7525440.

The previous prime is 12543199. The next prime is 12543233. The reversal of 12543201 is 10234521.

It is not a de Polignac number, because 12543201 - 2¹ = 12543199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12543241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46495 + ... + 46763.

It is an arithmetic number, because the mean of its divisors is an integer number (639900).

Almost surely, 2^12543201 is an apocalyptic number.

12543201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12543201 is a deficient number, since it is larger than the sum of its proper divisors (7933599).

12543201 is a wasteful number, since it uses less digits than its factorization.

12543201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 440 counting only the distinct ones).

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

The square root of 12543201 is about 3541.6381802776. The cubic root of 12543201 is about 232.3464959685.

Adding to 12543201 its reverse (10234521), we get a palindrome (22777722).

The spelling of 12543201 in words is "twelve million, five hundred forty-three thousand, two hundred one".