201422005 has 4 divisors (see below), whose sum is σ = 241706412. Its totient is φ = 161137600.

The previous prime is 201422003. The next prime is 201422027. The reversal of 201422005 is 500224102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42107121 + 159314884 = 6489^2 + 12622^2 .

It is not a de Polignac number, because 201422005 - 2¹ = 201422003 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 201422005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201422003) 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, 20142196 + ... + 20142205.

It is an arithmetic number, because the mean of its divisors is an integer number (60426603).

Almost surely, 2^201422005 is an apocalyptic number.

It is an amenable number.

201422005 is a deficient number, since it is larger than the sum of its proper divisors (40284407).

201422005 is an equidigital number, since it uses as much as digits as its factorization.

201422005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40284406.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 201422005 is about 14192.3220439786. The cubic root of 201422005 is about 586.1862650315.

Adding to 201422005 its reverse (500224102), we get a palindrome (701646107).

The spelling of 201422005 in words is "two hundred one million, four hundred twenty-two thousand, five".