2164499 has 4 divisors (see below), whose sum is σ = 2278440. Its totient is φ = 2050560.

The previous prime is 2164493. The next prime is 2164501. The reversal of 2164499 is 9944612.

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

It is a cyclic number.

It is not a de Polignac number, because 2164499 - 2⁴ = 2164483 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 6⁵ + 4⁴ + 4⁴ + 9 + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164493) 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, 56942 + ... + 56979.

It is an arithmetic number, because the mean of its divisors is an integer number (569610).

2^2164499 is an apocalyptic number.

2164499 is a deficient number, since it is larger than the sum of its proper divisors (113941).

2164499 is a wasteful number, since it uses less digits than its factorization.

2164499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113940.

The product of its digits is 15552, while the sum is 35.

The square root of 2164499 is about 1471.2236403756. The cubic root of 2164499 is about 129.3557673263.

The spelling of 2164499 in words is "two million, one hundred sixty-four thousand, four hundred ninety-nine".