1115121 has 8 divisors (see below), whose sum is σ = 1699264. Its totient is φ = 637200.

The previous prime is 1115117. The next prime is 1115131. The reversal of 1115121 is 1215111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1115121 - 2² = 1115117 is a prime.

It is a Curzon number.

1115121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1115097 and 1115106.

It is not an unprimeable number, because it can be changed into a prime (1115131) 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, 26530 + ... + 26571.

It is an arithmetic number, because the mean of its divisors is an integer number (212408).

2^1115121 is an apocalyptic number.

It is an amenable number.

1115121 is a deficient number, since it is larger than the sum of its proper divisors (584143).

1115121 is an equidigital number, since it uses as much as digits as its factorization.

1115121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53111.

The product of its digits is 10, while the sum is 12.

The square root of 1115121 is about 1055.9928977034. The cubic root of 1115121 is about 103.6988638504.

Subtracting from 1115121 its product of digits (10), we obtain a palindrome (1115111).

The spelling of 1115121 in words is "one million, one hundred fifteen thousand, one hundred twenty-one".