138363122 has 4 divisors (see below), whose sum is σ = 207544686. Its totient is φ = 69181560.

The previous prime is 138363079. The next prime is 138363139. The reversal of 138363122 is 221363831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221363831 = 13 ⋅17027987.

It can be written as a sum of positive squares in only one way, i.e., 123854641 + 14508481 = 11129^2 + 3809^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34590779 + ... + 34590782.

Almost surely, 2^138363122 is an apocalyptic number.

138363122 is a deficient number, since it is larger than the sum of its proper divisors (69181564).

138363122 is an equidigital number, since it uses as much as digits as its factorization.

138363122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69181563.

The product of its digits is 5184, while the sum is 29.

The square root of 138363122 is about 11762.7854694371. The cubic root of 138363122 is about 517.2177860226.

The spelling of 138363122 in words is "one hundred thirty-eight million, three hundred sixty-three thousand, one hundred twenty-two".