2661118 has 4 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 1330558.

The previous prime is 2661107. The next prime is 2661119. The reversal of 2661118 is 8111662.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2661092 and 2661101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661119) 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, 665278 + ... + 665281.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

2^2661118 is an apocalyptic number.

2661118 is a deficient number, since it is larger than the sum of its proper divisors (1330562).

2661118 is a wasteful number, since it uses less digits than its factorization.

2661118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330561.

The product of its digits is 576, while the sum is 25.

The square root of 2661118 is about 1631.2933519144. The cubic root of 2661118 is about 138.5760073188.

The spelling of 2661118 in words is "two million, six hundred sixty-one thousand, one hundred eighteen".