122271547 has 2 divisors, whose sum is σ = 122271548. Its totient is φ = 122271546.

The previous prime is 122271521. The next prime is 122271551. The reversal of 122271547 is 745172221.

It is a strong prime.

It is an emirp because it is prime and its reverse (745172221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122271547 - 2⁷ = 122271419 is a prime.

It is not a weakly prime, because it can be changed into another prime (122271557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61135773 + 61135774.

It is an arithmetic number, because the mean of its divisors is an integer number (61135774).

Almost surely, 2^122271547 is an apocalyptic number.

122271547 is a deficient number, since it is larger than the sum of its proper divisors (1).

122271547 is an equidigital number, since it uses as much as digits as its factorization.

122271547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7840, while the sum is 31.

The square root of 122271547 is about 11057.6465398384. The cubic root of 122271547 is about 496.3352677664.

The spelling of 122271547 in words is "one hundred twenty-two million, two hundred seventy-one thousand, five hundred forty-seven".