1115115 has 16 divisors (see below), whose sum is σ = 1889568.
Its totient is φ = 559616.
The previous prime is 1115113. The next prime is 1115117. The reversal of 1115115 is 5115111.
It can be divided in two parts, 111 and 5115, that multiplied together give a palindrome (567765).
It is an interprime number because it is at equal distance from previous prime (1115113) and next prime (1115117).
It is a cyclic number.
It is not a de Polignac number, because 1115115 - 21 = 1115113 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 1115094 and 1115103.
It is not an unprimeable number, because it can be changed into a prime (1115113) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1932 + ... + 2441.
It is an arithmetic number, because the mean of its divisors is an integer number (118098).
21115115 is an apocalyptic number.
1115115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1115115 is a deficient number, since it is larger than the sum of its proper divisors (774453).
1115115 is a wasteful number, since it uses less digits than its factorization.
1115115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4398.
The product of its digits is 25, while the sum is 15.
The square root of 1115115 is about 1055.9900567714.
The cubic root of 1115115 is about 103.6986778633.
The spelling of 1115115 in words is "one million, one hundred fifteen thousand, one hundred fifteen".