1204001 has 4 divisors (see below), whose sum is σ = 1226772. Its totient is φ = 1181232.

The previous prime is 1203971. The next prime is 1204003. The reversal of 1204001 is 1004021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1004021 = 227 ⋅4423.

It can be written as a sum of positive squares in 2 ways, for example, as 640000 + 564001 = 800^2 + 751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204001 - 2¹⁰ = 1202977 is a prime.

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 1204001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11306 + ... + 11411.

It is an arithmetic number, because the mean of its divisors is an integer number (306693).

2^1204001 is an apocalyptic number.

It is an amenable number.

1204001 is a deficient number, since it is larger than the sum of its proper divisors (22771).

1204001 is an equidigital number, since it uses as much as digits as its factorization.

1204001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22770.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1204001 is about 1097.2697936242. The cubic root of 1204001 is about 106.3838285955.

Adding to 1204001 its reverse (1004021), we get a palindrome (2208022).

The spelling of 1204001 in words is "one million, two hundred four thousand, one".