2118712 has 8 divisors (see below), whose sum is σ = 3972600. Its totient is φ = 1059352.

The previous prime is 2118703. The next prime is 2118733. The reversal of 2118712 is 2178112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a pancake number, because a pancake can be divided into 2118712 parts by 2058 straight cuts.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132412 + ... + 132427.

It is an arithmetic number, because the mean of its divisors is an integer number (496575).

2^2118712 is an apocalyptic number.

It is an amenable number.

2118712 is a deficient number, since it is larger than the sum of its proper divisors (1853888).

2118712 is a wasteful number, since it uses less digits than its factorization.

2118712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264845 (or 264841 counting only the distinct ones).

The product of its digits is 224, while the sum is 22.

The square root of 2118712 is about 1455.5796096401. The cubic root of 2118712 is about 128.4371446899.

Multiplying 2118712 by its sum of digits (22), we get a palindrome (46611664).

The spelling of 2118712 in words is "two million, one hundred eighteen thousand, seven hundred twelve".