122639038 has 16 divisors (see below), whose sum is σ = 190162944. Its totient is φ = 59257080.

The previous prime is 122639021. The next prime is 122639039. The reversal of 122639038 is 830936221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122638994 and 122639012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122639039) 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 in 7 ways as a sum of consecutive naturals, for example, 84031 + ... + 85477.

It is an arithmetic number, because the mean of its divisors is an integer number (11885184).

Almost surely, 2^122639038 is an apocalyptic number.

122639038 is a deficient number, since it is larger than the sum of its proper divisors (67523906).

122639038 is a wasteful number, since it uses less digits than its factorization.

122639038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 122639038 is about 11074.2511259227. The cubic root of 122639038 is about 496.8320208754.

The spelling of 122639038 in words is "one hundred twenty-two million, six hundred thirty-nine thousand, thirty-eight".