2881162 has 4 divisors (see below), whose sum is σ = 4321746. Its totient is φ = 1440580.

The previous prime is 2881159. The next prime is 2881163. The reversal of 2881162 is 2611882.

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

It can be written as a sum of positive squares in only one way, i.e., 2752281 + 128881 = 1659^2 + 359^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2881162.

It is not an unprimeable number, because it can be changed into a prime (2881163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720289 + ... + 720292.

2^2881162 is an apocalyptic number.

2881162 is a deficient number, since it is larger than the sum of its proper divisors (1440584).

2881162 is a wasteful number, since it uses less digits than its factorization.

2881162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440583.

The product of its digits is 1536, while the sum is 28.

The square root of 2881162 is about 1697.3985978550. The cubic root of 2881162 is about 142.2948643753.

The spelling of 2881162 in words is "two million, eight hundred eighty-one thousand, one hundred sixty-two".