2215112543 has 16 divisors (see below), whose sum is σ = 2648893440. Its totient is φ = 1811120256.

The previous prime is 2215112489. The next prime is 2215112551. The reversal of 2215112543 is 3452115122.

It is a cyclic number.

It is not a de Polignac number, because 2215112543 - 2⁸ = 2215112287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215112243) 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, 40343 + ... + 77831.

It is an arithmetic number, because the mean of its divisors is an integer number (165555840).

Almost surely, 2^2215112543 is an apocalyptic number.

2215112543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2215112543 is a deficient number, since it is larger than the sum of its proper divisors (433780897).

2215112543 is a wasteful number, since it uses less digits than its factorization.

2215112543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37886.

The product of its digits is 2400, while the sum is 26.

The square root of 2215112543 is about 47064.9821310919. The cubic root of 2215112543 is about 1303.5627209378.

Adding to 2215112543 its reverse (3452115122), we get a palindrome (5667227665).

The spelling of 2215112543 in words is "two billion, two hundred fifteen million, one hundred twelve thousand, five hundred forty-three".