122289769 has 4 divisors (see below), whose sum is σ = 139759744. Its totient is φ = 104819796.

The previous prime is 122289751. The next prime is 122289779. The reversal of 122289769 is 967982221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122289769 - 2¹¹ = 122287721 is a prime.

It is a super-2 number, since 2×122289769² = 29909575204146722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122289749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8734977 + ... + 8734990.

It is an arithmetic number, because the mean of its divisors is an integer number (34939936).

Almost surely, 2^122289769 is an apocalyptic number.

It is an amenable number.

122289769 is a deficient number, since it is larger than the sum of its proper divisors (17469975).

122289769 is an equidigital number, since it uses as much as digits as its factorization.

122289769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17469974.

The product of its digits is 217728, while the sum is 46.

The square root of 122289769 is about 11058.4704638571. The cubic root of 122289769 is about 496.3599226493.

It can be divided in two parts, 12228976 and 9, that added together give a triangular number (12228985 = T₄₉₄₅).

The spelling of 122289769 in words is "one hundred twenty-two million, two hundred eighty-nine thousand, seven hundred sixty-nine".