1201801 has 4 divisors (see below), whose sum is σ = 1211392. Its totient is φ = 1192212.

The previous prime is 1201793. The next prime is 1201813. The reversal of 1201801 is 1081021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1081021 = 107 ⋅10103.

It is a cyclic number.

It is not a de Polignac number, because 1201801 - 2³ = 1201793 is a prime.

It is a Duffinian number.

1201801 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1201841) 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, 4605 + ... + 4858.

It is an arithmetic number, because the mean of its divisors is an integer number (302848).

2^1201801 is an apocalyptic number.

It is an amenable number.

1201801 is a deficient number, since it is larger than the sum of its proper divisors (9591).

1201801 is an equidigital number, since it uses as much as digits as its factorization.

1201801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1201801 is about 1096.2668470769. The cubic root of 1201801 is about 106.3189927912.

Adding to 1201801 its reverse (1081021), we get a palindrome (2282822).

It can be divided in two parts, 1201 and 801, that added together give a palindrome (2002).

The spelling of 1201801 in words is "one million, two hundred one thousand, eight hundred one".