201422147 has 2 divisors, whose sum is σ = 201422148. Its totient is φ = 201422146.

The previous prime is 201422093. The next prime is 201422227. The reversal of 201422147 is 741224102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201422147 - 2⁶ = 201422083 is a prime.

It is not a weakly prime, because it can be changed into another prime (201422447) 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 as a sum of consecutive naturals, namely, 100711073 + 100711074.

It is an arithmetic number, because the mean of its divisors is an integer number (100711074).

Almost surely, 2^201422147 is an apocalyptic number.

201422147 is a deficient number, since it is larger than the sum of its proper divisors (1).

201422147 is an equidigital number, since it uses as much as digits as its factorization.

201422147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 201422147 is about 14192.3270466827. The cubic root of 201422147 is about 586.1864027829.

Adding to 201422147 its reverse (741224102), we get a palindrome (942646249).

The spelling of 201422147 in words is "two hundred one million, four hundred twenty-two thousand, one hundred forty-seven".