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2002201 = 19105379

2002201 has 4 divisors (see below), whose sum is σ = 2107600. Its totient is φ = 1896804.

The previous prime is 2002199. The next prime is 2002207. The reversal of 2002201 is 1022002.

Adding to 2002201 its reverse (1022002), we get a palindrome (3024203).

It can be divided in two parts, 200 and 2201, that added together give a 4-th power (2401 = 74).

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: 1022002 = 2511001.

It is a cyclic number.

It is not a de Polignac number, because 2002201 - 21 = 2002199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52671 + ... + 52708.

It is an arithmetic number, because the mean of its divisors is an integer number (526900).

22002201 is an apocalyptic number.

It is an amenable number.

2002201 is a deficient number, since it is larger than the sum of its proper divisors (105399).

2002201 is a wasteful number, since it uses less digits than its factorization.

2002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105398.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2002201 is about 1414.9915194092. The cubic root of 2002201 is about 126.0383061494.

The spelling of 2002201 in words is "two million, two thousand, two hundred one".

Divisors: 1 19 105379 2002201