139822211 has 2 divisors, whose sum is σ = 139822212. Its totient is φ = 139822210.

The previous prime is 139822181. The next prime is 139822219. The reversal of 139822211 is 112228931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139822211 - 2⁶ = 139822147 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (139822219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69911105 + 69911106.

It is an arithmetic number, because the mean of its divisors is an integer number (69911106).

Almost surely, 2^139822211 is an apocalyptic number.

139822211 is a deficient number, since it is larger than the sum of its proper divisors (1).

139822211 is an equidigital number, since it uses as much as digits as its factorization.

139822211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 139822211 is about 11824.6442229777. The cubic root of 139822211 is about 519.0295150914.

The spelling of 139822211 in words is "one hundred thirty-nine million, eight hundred twenty-two thousand, two hundred eleven".