122703138 has 12 divisors (see below), whose sum is σ = 265856838. Its totient is φ = 40901040.

The previous prime is 122703101. The next prime is 122703151. The reversal of 122703138 is 831307221.

It can be written as a sum of positive squares in only one way, i.e., 122611329 + 91809 = 11073^2 + 303^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3408403 + ... + 3408438.

Almost surely, 2^122703138 is an apocalyptic number.

122703138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

122703138 is an abundant number, since it is smaller than the sum of its proper divisors (143153700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122703138 is a wasteful number, since it uses less digits than its factorization.

122703138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816849 (or 6816846 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 122703138 is about 11077.1448487415. The cubic root of 122703138 is about 496.9185658727.

The spelling of 122703138 in words is "one hundred twenty-two million, seven hundred three thousand, one hundred thirty-eight".