2190165 has 8 divisors (see below), whose sum is σ = 3504288. Its totient is φ = 1168080.

The previous prime is 2190157. The next prime is 2190169. The reversal of 2190165 is 5610912.

2190165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2190165 - 2³ = 2190157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72991 + ... + 73020.

It is an arithmetic number, because the mean of its divisors is an integer number (438036).

2^2190165 is an apocalyptic number.

It is an amenable number.

2190165 is a deficient number, since it is larger than the sum of its proper divisors (1314123).

2190165 is a wasteful number, since it uses less digits than its factorization.

2190165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146019.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 2190165 is about 1479.9206059786. The cubic root of 2190165 is about 129.8650473312.

The spelling of 2190165 in words is "two million, one hundred ninety thousand, one hundred sixty-five".