122443389 has 6 divisors (see below), whose sum is σ = 176862686. Its totient is φ = 81628920.

The previous prime is 122443381. The next prime is 122443393. The reversal of 122443389 is 983344221.

It can be written as a sum of positive squares in only one way, i.e., 122279364 + 164025 = 11058^2 + 405^2 .

It is not a de Polignac number, because 122443389 - 2³ = 122443381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122443381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6802402 + ... + 6802419.

Almost surely, 2^122443389 is an apocalyptic number.

It is an amenable number.

122443389 is a deficient number, since it is larger than the sum of its proper divisors (54419297).

122443389 is a wasteful number, since it uses less digits than its factorization.

122443389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13604827 (or 13604824 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 122443389 is about 11065.4140907605. The cubic root of 122443389 is about 496.5676775730.

The spelling of 122443389 in words is "one hundred twenty-two million, four hundred forty-three thousand, three hundred eighty-nine".