122272159 has 2 divisors, whose sum is σ = 122272160. Its totient is φ = 122272158.

The previous prime is 122272147. The next prime is 122272181. The reversal of 122272159 is 951272221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122272159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122272159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122272459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61136079 + 61136080.

It is an arithmetic number, because the mean of its divisors is an integer number (61136080).

Almost surely, 2^122272159 is an apocalyptic number.

122272159 is a deficient number, since it is larger than the sum of its proper divisors (1).

122272159 is an equidigital number, since it uses as much as digits as its factorization.

122272159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 122272159 is about 11057.6742129618. The cubic root of 122272159 is about 496.3360958595.

The spelling of 122272159 in words is "one hundred twenty-two million, two hundred seventy-two thousand, one hundred fifty-nine".