1200065 has 8 divisors (see below), whose sum is σ = 1446120. Its totient is φ = 956032.

The previous prime is 1200061. The next prime is 1200077. The reversal of 1200065 is 5600021.

It can be written as a sum of positive squares in 4 ways, for example, as 18496 + 1181569 = 136^2 + 1087^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1200065 - 2² = 1200061 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1200061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (180765).

2^1200065 is an apocalyptic number.

It is an amenable number.

1200065 is a deficient number, since it is larger than the sum of its proper divisors (246055).

1200065 is an equidigital number, since it uses as much as digits as its factorization.

1200065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1200065 is about 1095.4747829138. The cubic root of 1200065 is about 106.2677755727.

Adding to 1200065 its reverse (5600021), we get a palindrome (6800086).

The spelling of 1200065 in words is "one million, two hundred thousand, sixty-five".