122268149 has 2 divisors, whose sum is σ = 122268150. Its totient is φ = 122268148.

The previous prime is 122268137. The next prime is 122268163. The reversal of 122268149 is 941862221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122102500 + 165649 = 11050^2 + 407^2 .

It is an emirp because it is prime and its reverse (941862221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122268149 - 2¹² = 122264053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122268449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61134074 + 61134075.

It is an arithmetic number, because the mean of its divisors is an integer number (61134075).

Almost surely, 2^122268149 is an apocalyptic number.

It is an amenable number.

122268149 is a deficient number, since it is larger than the sum of its proper divisors (1).

122268149 is an equidigital number, since it uses as much as digits as its factorization.

122268149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 122268149 is about 11057.4928894393. The cubic root of 122268149 is about 496.3306699050.

The spelling of 122268149 in words is "one hundred twenty-two million, two hundred sixty-eight thousand, one hundred forty-nine".