2152664 has 16 divisors (see below), whose sum is σ = 4135320. Its totient is φ = 1049920.

The previous prime is 2152663. The next prime is 2152669. The reversal of 2152664 is 4662512.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954 + ... + 3609.

2^2152664 is an apocalyptic number.

It is an amenable number.

2152664 is a deficient number, since it is larger than the sum of its proper divisors (1982656).

2152664 is a wasteful number, since it uses less digits than its factorization.

2152664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6606 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 2152664 is about 1467.1959650981. The cubic root of 2152664 is about 129.1195734439.

The spelling of 2152664 in words is "two million, one hundred fifty-two thousand, six hundred sixty-four".