1111245 has 16 divisors (see below), whose sum is σ = 1855872. Its totient is φ = 566720.

The previous prime is 1111219. The next prime is 1111247. The reversal of 1111245 is 5421111.

It is a happy number.

It is not a de Polignac number, because 1111245 - 2⁵ = 1111213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1266 + ... + 1955.

It is an arithmetic number, because the mean of its divisors is an integer number (115992).

2^1111245 is an apocalyptic number.

1111245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111245 is a deficient number, since it is larger than the sum of its proper divisors (744627).

1111245 is a wasteful number, since it uses less digits than its factorization.

1111245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252.

The product of its digits is 40, while the sum is 15.

The square root of 1111245 is about 1054.1560605527. The cubic root of 1111245 is about 103.5785769371.

Adding to 1111245 its reverse (5421111), we get a palindrome (6532356).

The spelling of 1111245 in words is "one million, one hundred eleven thousand, two hundred forty-five".