1115150863 has 4 divisors (see below), whose sum is σ = 1141084648. Its totient is φ = 1089217080.

The previous prime is 1115150851. The next prime is 1115150909. The reversal of 1115150863 is 3680515111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115150863 is a prime.

It is a super-2 number, since 2×1115150863² = 2487122894499289538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115150063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12966828 + ... + 12966913.

It is an arithmetic number, because the mean of its divisors is an integer number (285271162).

Almost surely, 2^1115150863 is an apocalyptic number.

1115150863 is a deficient number, since it is larger than the sum of its proper divisors (25933785).

1115150863 is an equidigital number, since it uses as much as digits as its factorization.

1115150863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25933784.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 1115150863 is about 33393.8746329323. The cubic root of 1115150863 is about 1036.9978952918.

Adding to 1115150863 its reverse (3680515111), we get a palindrome (4795665974).

The spelling of 1115150863 in words is "one billion, one hundred fifteen million, one hundred fifty thousand, eight hundred sixty-three".