101422147 has 2 divisors, whose sum is σ = 101422148. Its totient is φ = 101422146.

The previous prime is 101422129. The next prime is 101422163. The reversal of 101422147 is 741224101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101422147 - 2¹⁹ = 100897859 is a prime.

It is not a weakly prime, because it can be changed into another prime (101422117) 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, 50711073 + 50711074.

It is an arithmetic number, because the mean of its divisors is an integer number (50711074).

Almost surely, 2^101422147 is an apocalyptic number.

101422147 is a deficient number, since it is larger than the sum of its proper divisors (1).

101422147 is an equidigital number, since it uses as much as digits as its factorization.

101422147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 101422147 is about 10070.8563191022. The cubic root of 101422147 is about 466.3488748516.

Adding to 101422147 its reverse (741224101), we get a palindrome (842646248).

The spelling of 101422147 in words is "one hundred one million, four hundred twenty-two thousand, one hundred forty-seven".