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1200201 = 3400067

1200201 has 4 divisors (see below), whose sum is σ = 1600272. Its totient is φ = 800132.

The previous prime is 1200191. The next prime is 1200233. The reversal of 1200201 is 1020021.

It is a happy number.

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: 1020021 = 3340007.

It is a cyclic number.

It is not a de Polignac number, because 1200201 - 29 = 1199689 is a prime.

It is a D-number.

1200201 is a lucky number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1200201.

It is not an unprimeable number, because it can be changed into a prime (1200701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200031 + ... + 200036.

It is an arithmetic number, because the mean of its divisors is an integer number (400068).

21200201 is an apocalyptic number.

It is an amenable number.

1200201 is a deficient number, since it is larger than the sum of its proper divisors (400071).

1200201 is an equidigital number, since it uses as much as digits as its factorization.

1200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400070.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1200201 is about 1095.5368546973. The cubic root of 1200201 is about 106.2717897640.

Adding to 1200201 its reverse (1020021), we get a palindrome (2220222).

It can be divided in two parts, 120020 and 1, that added together give a palindrome (120021).

The spelling of 1200201 in words is "one million, two hundred thousand, two hundred one".

Divisors: 1 3 400067 1200201