1802165 has 8 divisors (see below), whose sum is σ = 2256768. Its totient is φ = 1378960.

The previous prime is 1802149. The next prime is 1802189. The reversal of 1802165 is 5612081.

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

It is not a de Polignac number, because 1802165 - 2⁴ = 1802149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1802165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7721 + ... + 7950.

It is an arithmetic number, because the mean of its divisors is an integer number (282096).

2^1802165 is an apocalyptic number.

It is an amenable number.

1802165 is a deficient number, since it is larger than the sum of its proper divisors (454603).

1802165 is a wasteful number, since it uses less digits than its factorization.

1802165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15699.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1802165 is about 1342.4473918929. The cubic root of 1802165 is about 121.6927906206.

The spelling of 1802165 in words is "one million, eight hundred two thousand, one hundred sixty-five".