122027639 has 2 divisors, whose sum is σ = 122027640. Its totient is φ = 122027638.

The previous prime is 122027623. The next prime is 122027657. The reversal of 122027639 is 936720221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (936720221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122027639 - 2⁴ = 122027623 is a prime.

It is equal to p_6950552 and since 122027639 and 6950552 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122027669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61013819 + 61013820.

It is an arithmetic number, because the mean of its divisors is an integer number (61013820).

Almost surely, 2^122027639 is an apocalyptic number.

122027639 is a deficient number, since it is larger than the sum of its proper divisors (1).

122027639 is an equidigital number, since it uses as much as digits as its factorization.

122027639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 122027639 is about 11046.6121050755. The cubic root of 122027639 is about 496.0050172381.

The spelling of 122027639 in words is "one hundred twenty-two million, twenty-seven thousand, six hundred thirty-nine".