12100543 has 16 divisors (see below), whose sum is σ = 15049216. Its totient is φ = 9473760.

The previous prime is 12100541. The next prime is 12100567. The reversal of 12100543 is 34500121.

It is a cyclic number.

It is not a de Polignac number, because 12100543 - 2¹ = 12100541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100541) 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, 8728 + ... + 10018.

It is an arithmetic number, because the mean of its divisors is an integer number (940576).

Almost surely, 2^12100543 is an apocalyptic number.

12100543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12100543 is a deficient number, since it is larger than the sum of its proper divisors (2948673).

12100543 is a wasteful number, since it uses less digits than its factorization.

12100543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12100543 is about 3478.5834760718. The cubic root of 12100543 is about 229.5804765842.

Adding to 12100543 its reverse (34500121), we get a palindrome (46600664).

The spelling of 12100543 in words is "twelve million, one hundred thousand, five hundred forty-three".