1111145 has 16 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 746304.

The previous prime is 1111091. The next prime is 1111151. The reversal of 1111145 is 5411111.

It is a cyclic number.

It is not a de Polignac number, because 1111145 - 2⁶ = 1111081 is a prime.

It is a super-2 number, since 2×1111145² = 2469286422050, which contains 22 as substring.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1556 + ... + 2154.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2^1111145 is an apocalyptic number.

It is an amenable number.

1111145 is a deficient number, since it is larger than the sum of its proper divisors (444055).

1111145 is an equidigital number, since it uses as much as digits as its factorization.

1111145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664.

The product of its digits is 20, while the sum is 14.

The square root of 1111145 is about 1054.1086281783. The cubic root of 1111145 is about 103.5754698610.

Adding to 1111145 its reverse (5411111), we get a palindrome (6522256).

The spelling of 1111145 in words is "one million, one hundred eleven thousand, one hundred forty-five".