122366389 has 2 divisors, whose sum is σ = 122366390. Its totient is φ = 122366388.

The previous prime is 122366381. The next prime is 122366401. The reversal of 122366389 is 983663221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122279364 + 87025 = 11058^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 122366389 - 2³ = 122366381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122366381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61183194 + 61183195.

It is an arithmetic number, because the mean of its divisors is an integer number (61183195).

Almost surely, 2^122366389 is an apocalyptic number.

It is an amenable number.

122366389 is a deficient number, since it is larger than the sum of its proper divisors (1).

122366389 is an equidigital number, since it uses as much as digits as its factorization.

122366389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 122366389 is about 11061.9342341202. The cubic root of 122366389 is about 496.4635648907.

The spelling of 122366389 in words is "one hundred twenty-two million, three hundred sixty-six thousand, three hundred eighty-nine".