6111145 has 4 divisors (see below), whose sum is σ = 7333380. Its totient is φ = 4888912.

The previous prime is 6111139. The next prime is 6111151. The reversal of 6111145 is 5411116.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6111139) and next prime (6111151).

It can be written as a sum of positive squares in 2 ways, for example, as 2155024 + 3956121 = 1468^2 + 1989^2 .

It is a cyclic number.

It is not a de Polignac number, because 6111145 - 2¹³ = 6102953 is a prime.

It is a super-2 number, since 2×6111145² = 74692186422050, 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, 611110 + ... + 611119.

It is an arithmetic number, because the mean of its divisors is an integer number (1833345).

Almost surely, 2^6111145 is an apocalyptic number.

It is an amenable number.

6111145 is a deficient number, since it is larger than the sum of its proper divisors (1222235).

6111145 is a wasteful number, since it uses less digits than its factorization.

6111145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222234.

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

The square root of 6111145 is about 2472.0730167210. The cubic root of 6111145 is about 182.8272230332.

The spelling of 6111145 in words is "six million, one hundred eleven thousand, one hundred forty-five".