122055439 has 4 divisors (see below), whose sum is σ = 133151400. Its totient is φ = 110959480.

The previous prime is 122055433. The next prime is 122055443. The reversal of 122055439 is 934550221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122055439 - 2¹⁵ = 122022671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122055439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122055433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5547964 + ... + 5547985.

It is an arithmetic number, because the mean of its divisors is an integer number (33287850).

Almost surely, 2^122055439 is an apocalyptic number.

122055439 is a deficient number, since it is larger than the sum of its proper divisors (11095961).

122055439 is a wasteful number, since it uses less digits than its factorization.

122055439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095960.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 122055439 is about 11047.8703377619. The cubic root of 122055439 is about 496.0426805429.

The spelling of 122055439 in words is "one hundred twenty-two million, fifty-five thousand, four hundred thirty-nine".