1115963 has 4 divisors (see below), whose sum is σ = 1118088. Its totient is φ = 1113840.

The previous prime is 1115941. The next prime is 1115987. The reversal of 1115963 is 3695111.

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 1115963 - 2⁶ = 1115899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115923) 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, 368 + ... + 1538.

It is an arithmetic number, because the mean of its divisors is an integer number (279522).

2^1115963 is an apocalyptic number.

1115963 is a deficient number, since it is larger than the sum of its proper divisors (2125).

1115963 is an equidigital number, since it uses as much as digits as its factorization.

1115963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its digits is 810, while the sum is 26.

The square root of 1115963 is about 1056.3914993978. The cubic root of 1115963 is about 103.7249574242.

The spelling of 1115963 in words is "one million, one hundred fifteen thousand, nine hundred sixty-three".