201440201 has 4 divisors (see below), whose sum is σ = 207938304. Its totient is φ = 194942100.

The previous prime is 201440179. The next prime is 201440207. The reversal of 201440201 is 102044102.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201440201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201440207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3249005 + ... + 3249066.

It is an arithmetic number, because the mean of its divisors is an integer number (51984576).

Almost surely, 2^201440201 is an apocalyptic number.

It is an amenable number.

201440201 is a deficient number, since it is larger than the sum of its proper divisors (6498103).

201440201 is an equidigital number, since it uses as much as digits as its factorization.

201440201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498102.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 201440201 is about 14192.9630803437. The cubic root of 201440201 is about 586.2039160724.

Adding to 201440201 its reverse (102044102), we get a palindrome (303484303).

The spelling of 201440201 in words is "two hundred one million, four hundred forty thousand, two hundred one".