1116145 has 4 divisors (see below), whose sum is σ = 1339380. Its totient is φ = 892912.

The previous prime is 1116133. The next prime is 1116163. The reversal of 1116145 is 5416111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5416111 = 173 ⋅31307.

It can be written as a sum of positive squares in 2 ways, for example, as 207936 + 908209 = 456^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116145 - 2⁹ = 1115633 is a prime.

It is a super-2 number, since 2×1116145² = 2491559322050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111610 + ... + 111619.

It is an arithmetic number, because the mean of its divisors is an integer number (334845).

2^1116145 is an apocalyptic number.

It is an amenable number.

1116145 is a deficient number, since it is larger than the sum of its proper divisors (223235).

1116145 is an equidigital number, since it uses as much as digits as its factorization.

1116145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223234.

The product of its digits is 120, while the sum is 19.

The square root of 1116145 is about 1056.4776381921. The cubic root of 1116145 is about 103.7305958776.

The spelling of 1116145 in words is "one million, one hundred sixteen thousand, one hundred forty-five".