2143616 has 16 divisors (see below), whose sum is σ = 4270740. Its totient is φ = 1071744.

The previous prime is 2143579. The next prime is 2143621. The reversal of 2143616 is 6163412.

It is a happy number.

2143616 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2143591 and 2143600.

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, 8246 + ... + 8501.

2^2143616 is an apocalyptic number.

It is an amenable number.

2143616 is a deficient number, since it is larger than the sum of its proper divisors (2127124).

2143616 is an equidigital number, since it uses as much as digits as its factorization.

2143616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16761 (or 16749 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 2143616 is about 1464.1092855385. The cubic root of 2143616 is about 128.9384158102.

The spelling of 2143616 in words is "two million, one hundred forty-three thousand, six hundred sixteen".