1115300143 has 4 divisors (see below), whose sum is σ = 1116380848. Its totient is φ = 1114219440.

The previous prime is 1115300111. The next prime is 1115300161. The reversal of 1115300143 is 3410035111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1115300143 - 2⁵ = 1115300111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115300143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115300443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538803 + ... + 540868.

It is an arithmetic number, because the mean of its divisors is an integer number (279095212).

Almost surely, 2^1115300143 is an apocalyptic number.

1115300143 is a deficient number, since it is larger than the sum of its proper divisors (1080705).

1115300143 is a wasteful number, since it uses less digits than its factorization.

1115300143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080704.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1115300143 is about 33396.1096985862. The cubic root of 1115300143 is about 1037.0441659038.

Adding to 1115300143 its reverse (3410035111), we get a palindrome (4525335254).

The spelling of 1115300143 in words is "one billion, one hundred fifteen million, three hundred thousand, one hundred forty-three".