122771147 has 2 divisors, whose sum is σ = 122771148. Its totient is φ = 122771146.

The previous prime is 122771081. The next prime is 122771167. The reversal of 122771147 is 741177221.

It is a strong prime.

It is an emirp because it is prime and its reverse (741177221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122771147 - 2²⁴ = 105993931 is a prime.

It is not a weakly prime, because it can be changed into another prime (122771167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61385573 + 61385574.

It is an arithmetic number, because the mean of its divisors is an integer number (61385574).

Almost surely, 2^122771147 is an apocalyptic number.

122771147 is a deficient number, since it is larger than the sum of its proper divisors (1).

122771147 is an equidigital number, since it uses as much as digits as its factorization.

122771147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5488, while the sum is 32.

The square root of 122771147 is about 11080.2142127307. The cubic root of 122771147 is about 497.0103556822.

The spelling of 122771147 in words is "one hundred twenty-two million, seven hundred seventy-one thousand, one hundred forty-seven".