1115825863 has 8 divisors (see below), whose sum is σ = 1176243120. Its totient is φ = 1055577600.

The previous prime is 1115825849. The next prime is 1115825891. The reversal of 1115825863 is 3685285111.

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 1115825863 - 2⁵ = 1115825831 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 (1115825803) 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, 28570 + ... + 55207.

It is an arithmetic number, because the mean of its divisors is an integer number (147030390).

Almost surely, 2^1115825863 is an apocalyptic number.

1115825863 is a deficient number, since it is larger than the sum of its proper divisors (60417257).

1115825863 is an equidigital number, since it uses as much as digits as its factorization.

1115825863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84497.

The product of its digits is 57600, while the sum is 40.

The square root of 1115825863 is about 33403.9797479282. The cubic root of 1115825863 is about 1037.2070844455.

The spelling of 1115825863 in words is "one billion, one hundred fifteen million, eight hundred twenty-five thousand, eight hundred sixty-three".