122147 has 2 divisors, whose sum is σ = 122148. Its totient is φ = 122146.

The previous prime is 122131. The next prime is 122149. The reversal of 122147 is 741221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122147 - 2⁴ = 122131 is a prime.

Together with 122149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61073 + 61074.

It is an arithmetic number, because the mean of its divisors is an integer number (61074).

2¹²²¹⁴⁷ is an apocalyptic number.

122147 is a deficient number, since it is larger than the sum of its proper divisors (1).

122147 is an equidigital number, since it uses as much as digits as its factorization.

122147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112, while the sum is 17.

The square root of 122147 is about 349.4953504698. The cubic root of 122147 is about 49.6166686519.

Adding to 122147 its reverse (741221), we get a palindrome (863368).

It can be divided in two parts, 12214 and 7, that added together give a palindrome (12221).

The spelling of 122147 in words is "one hundred twenty-two thousand, one hundred forty-seven", and thus it is an iban number.