122446789 has 2 divisors, whose sum is σ = 122446790. Its totient is φ = 122446788.

The previous prime is 122446783. The next prime is 122446817. The reversal of 122446789 is 987644221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95062500 + 27384289 = 9750^2 + 5233^2 .

It is a cyclic number.

It is not a de Polignac number, because 122446789 - 2⁹ = 122446277 is a prime.

It is a super-2 number, since 2×122446789² = 29986432272821042, which contains 22 as substring.

It is equal to p_6972964 and since 122446789 and 6972964 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122446783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61223394 + 61223395.

It is an arithmetic number, because the mean of its divisors is an integer number (61223395).

Almost surely, 2^122446789 is an apocalyptic number.

It is an amenable number.

122446789 is a deficient number, since it is larger than the sum of its proper divisors (1).

122446789 is an equidigital number, since it uses as much as digits as its factorization.

122446789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 122446789 is about 11065.5677215405. The cubic root of 122446789 is about 496.5722737501.

The spelling of 122446789 in words is "one hundred twenty-two million, four hundred forty-six thousand, seven hundred eighty-nine".