1200801 has 16 divisors (see below), whose sum is σ = 1845248. Its totient is φ = 680400.

The previous prime is 1200799. The next prime is 1200809. The reversal of 1200801 is 1080021.

It is a happy number.

It is not a de Polignac number, because 1200801 - 2¹ = 1200799 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4296 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (115328).

2^1200801 is an apocalyptic number.

1200801 is the 633-rd octagonal number.

It is an amenable number.

1200801 is a deficient number, since it is larger than the sum of its proper divisors (644447).

1200801 is a wasteful number, since it uses less digits than its factorization.

1200801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1200801 is about 1095.8106588275. The cubic root of 1200801 is about 106.2894958126.

Adding to 1200801 its reverse (1080021), we get a palindrome (2280822).

The spelling of 1200801 in words is "one million, two hundred thousand, eight hundred one".