139822289 has 2 divisors, whose sum is σ = 139822290. Its totient is φ = 139822288.

The previous prime is 139822261. The next prime is 139822303. The reversal of 139822289 is 982228931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132066064 + 7756225 = 11492^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 139822289 - 2¹⁶ = 139756753 is a 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69911144 + 69911145.

It is an arithmetic number, because the mean of its divisors is an integer number (69911145).

Almost surely, 2^139822289 is an apocalyptic number.

It is an amenable number.

139822289 is a deficient number, since it is larger than the sum of its proper divisors (1).

139822289 is an equidigital number, since it uses as much as digits as its factorization.

139822289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 139822289 is about 11824.6475211737. The cubic root of 139822289 is about 519.0296116051.

The spelling of 139822289 in words is "one hundred thirty-nine million, eight hundred twenty-two thousand, two hundred eighty-nine".