1802065 has 8 divisors (see below), whose sum is σ = 2170728. Its totient is φ = 1436160.

The previous prime is 1802057. The next prime is 1802077. The reversal of 1802065 is 5602081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 173889 + 1628176 = 417^2 + 1276^2 .

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

It is not a de Polignac number, because 1802065 - 2³ = 1802057 is a prime.

It is a Duffinian 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, 1255 + ... + 2275.

It is an arithmetic number, because the mean of its divisors is an integer number (271341).

2^1802065 is an apocalyptic number.

It is an amenable number.

1802065 is a deficient number, since it is larger than the sum of its proper divisors (368663).

1802065 is a wasteful number, since it uses less digits than its factorization.

1802065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1802065 is about 1342.4101459688. The cubic root of 1802065 is about 121.6905397161.

The spelling of 1802065 in words is "one million, eight hundred two thousand, sixty-five".