2146689 has 16 divisors (see below), whose sum is σ = 3256000. Its totient is φ = 1397844.

The previous prime is 2146687. The next prime is 2146691. The reversal of 2146689 is 9866412.

The cubic root of 2146689 is 129.

It is a perfect power (a cube), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (2146687) and next prime (2146691).

It is not a de Polignac number, because 2146689 - 2¹ = 2146687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2146687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49902 + ... + 49944.

It is an arithmetic number, because the mean of its divisors is an integer number (203500).

2^2146689 is an apocalyptic number.

It is an amenable number.

2146689 is a deficient number, since it is larger than the sum of its proper divisors (1109311).

2146689 is an frugal number, since it uses more digits than its factorization.

2146689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 46 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2146689 is about 1465.1583532165.

It can be divided in two parts, 214 and 6689, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 2146689 in words is "two million, one hundred forty-six thousand, six hundred eighty-nine".