1115003 has 4 divisors (see below), whose sum is σ = 1117200. Its totient is φ = 1112808.

The previous prime is 1114999. The next prime is 1115011. The reversal of 1115003 is 3005111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3005111 = 23 ⋅130657.

It is a cyclic number.

It is not a de Polignac number, because 1115003 - 2² = 1114999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112003) 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, 98 + ... + 1496.

It is an arithmetic number, because the mean of its divisors is an integer number (279300).

2^1115003 is an apocalyptic number.

1115003 is a deficient number, since it is larger than the sum of its proper divisors (2197).

1115003 is an equidigital number, since it uses as much as digits as its factorization.

1115003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 1115003 is about 1055.9370246374. The cubic root of 1115003 is about 103.6952059820.

The spelling of 1115003 in words is "one million, one hundred fifteen thousand, three".