67122149 has 2 divisors, whose sum is σ = 67122150. Its totient is φ = 67122148.

The previous prime is 67122131. The next prime is 67122199. The reversal of 67122149 is 94122176.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60062500 + 7059649 = 7750^2 + 2657^2 .

It is a cyclic number.

It is not a de Polignac number, because 67122149 - 2⁸ = 67121893 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 (67122199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33561074 + 33561075.

It is an arithmetic number, because the mean of its divisors is an integer number (33561075).

Almost surely, 2^67122149 is an apocalyptic number.

It is an amenable number.

67122149 is a deficient number, since it is larger than the sum of its proper divisors (1).

67122149 is an equidigital number, since it uses as much as digits as its factorization.

67122149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 67122149 is about 8192.8108119253. The cubic root of 67122149 is about 406.4014831054.

The spelling of 67122149 in words is "sixty-seven million, one hundred twenty-two thousand, one hundred forty-nine".