1966065 has 8 divisors (see below), whose sum is σ = 3145728. Its totient is φ = 1048560.

The previous prime is 1966049. The next prime is 1966079. The reversal of 1966065 is 5606691.

1966065 = 101² + 102² + ... + 190².

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

It is not a de Polignac number, because 1966065 - 2⁴ = 1966049 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65521 + ... + 65550.

It is an arithmetic number, because the mean of its divisors is an integer number (393216).

2^1966065 is an apocalyptic number.

1966065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1966065 is a deficient number, since it is larger than the sum of its proper divisors (1179663).

1966065 is a wasteful number, since it uses less digits than its factorization.

1966065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131079.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1966065 is about 1402.1643983499. The cubic root of 1966065 is about 125.2754459238.

The spelling of 1966065 in words is "one million, nine hundred sixty-six thousand, sixty-five".