2164075 has 12 divisors (see below), whose sum is σ = 2711880. Its totient is φ = 1712960.

The previous prime is 2164073. The next prime is 2164111. The reversal of 2164075 is 5704612.

It is not a de Polignac number, because 2164075 - 2¹ = 2164073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2164073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2271 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (225990).

2^2164075 is an apocalyptic number.

2164075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2164075 is a deficient number, since it is larger than the sum of its proper divisors (547805).

2164075 is a wasteful number, since it uses less digits than its factorization.

2164075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2164075 is about 1471.0795355792. The cubic root of 2164075 is about 129.3473203482.

Adding to 2164075 its reverse (5704612), we get a palindrome (7868687).

The spelling of 2164075 in words is "two million, one hundred sixty-four thousand, seventy-five".