2277145 has 16 divisors (see below), whose sum is σ = 3002832. Its totient is φ = 1647360.

The previous prime is 2277139. The next prime is 2277179. The reversal of 2277145 is 5417722.

It can be written as a sum of positive squares in 8 ways, for example, as 64 + 2277081 = 8^2 + 1509^2 .

It is not a de Polignac number, because 2277145 - 2⁵ = 2277113 is a prime.

It is a Duffinian number.

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, 3115 + ... + 3775.

It is an arithmetic number, because the mean of its divisors is an integer number (187677).

2^2277145 is an apocalyptic number.

It is an amenable number.

2277145 is a deficient number, since it is larger than the sum of its proper divisors (725687).

2277145 is a wasteful number, since it uses less digits than its factorization.

2277145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732.

The product of its digits is 3920, while the sum is 28.

The square root of 2277145 is about 1509.0212059477. The cubic root of 2277145 is about 131.5619277776.

The spelling of 2277145 in words is "two million, two hundred seventy-seven thousand, one hundred forty-five".