122019959 has 2 divisors, whose sum is σ = 122019960. Its totient is φ = 122019958.

The previous prime is 122019901. The next prime is 122019967. The reversal of 122019959 is 959910221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122019959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122012959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61009979 + 61009980.

It is an arithmetic number, because the mean of its divisors is an integer number (61009980).

Almost surely, 2^122019959 is an apocalyptic number.

122019959 is a deficient number, since it is larger than the sum of its proper divisors (1).

122019959 is an equidigital number, since it uses as much as digits as its factorization.

122019959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 122019959 is about 11046.2644817151. The cubic root of 122019959 is about 495.9946114030.

The spelling of 122019959 in words is "one hundred twenty-two million, nineteen thousand, nine hundred fifty-nine".