2015140543 has 8 divisors (see below), whose sum is σ = 2297807568. Its totient is φ = 1750710144.

The previous prime is 2015140541. The next prime is 2015140549. The reversal of 2015140543 is 3450415102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2015140543 - 2¹ = 2015140541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015140541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4558921 + ... + 4559362.

It is an arithmetic number, because the mean of its divisors is an integer number (287225946).

Almost surely, 2^2015140543 is an apocalyptic number.

2015140543 is a deficient number, since it is larger than the sum of its proper divisors (282667025).

2015140543 is a wasteful number, since it uses less digits than its factorization.

2015140543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118313.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2015140543 is about 44890.3168066344. The cubic root of 2015140543 is about 1263.0923755136.

Adding to 2015140543 its reverse (3450415102), we get a palindrome (5465555645).

The spelling of 2015140543 in words is "two billion, fifteen million, one hundred forty thousand, five hundred forty-three".