2877145 has 4 divisors (see below), whose sum is σ = 3452580. Its totient is φ = 2301712.

The previous prime is 2877143. The next prime is 2877167. The reversal of 2877145 is 5417782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5417782 = 2 ⋅2708891.

It can be written as a sum of positive squares in 2 ways, for example, as 992016 + 1885129 = 996^2 + 1373^2 .

It is a cyclic number.

It is not a de Polignac number, because 2877145 - 2¹ = 2877143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2877145.

It is not an unprimeable number, because it can be changed into a prime (2877143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287710 + ... + 287719.

It is an arithmetic number, because the mean of its divisors is an integer number (863145).

2^2877145 is an apocalyptic number.

It is an amenable number.

2877145 is a deficient number, since it is larger than the sum of its proper divisors (575435).

2877145 is an equidigital number, since it uses as much as digits as its factorization.

2877145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575434.

The product of its digits is 15680, while the sum is 34.

The square root of 2877145 is about 1696.2149038374. The cubic root of 2877145 is about 142.2287030693.

The spelling of 2877145 in words is "two million, eight hundred seventy-seven thousand, one hundred forty-five".