122289557 has 4 divisors (see below), whose sum is σ = 131696460. Its totient is φ = 112882656.

The previous prime is 122289521. The next prime is 122289571. The reversal of 122289557 is 755982221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 755982221 = 311 ⋅2430811.

It can be written as a sum of positive squares in 2 ways, for example, as 83923921 + 38365636 = 9161^2 + 6194^2 .

It is a cyclic number.

It is not a de Polignac number, because 122289557 - 2⁶ = 122289493 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 (122289577) 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, 4703432 + ... + 4703457.

It is an arithmetic number, because the mean of its divisors is an integer number (32924115).

Almost surely, 2^122289557 is an apocalyptic number.

It is an amenable number.

122289557 is a deficient number, since it is larger than the sum of its proper divisors (9406903).

122289557 is an equidigital number, since it uses as much as digits as its factorization.

122289557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9406902.

The product of its digits is 100800, while the sum is 41.

The square root of 122289557 is about 11058.4608784405. The cubic root of 122289557 is about 496.3596358213.

The spelling of 122289557 in words is "one hundred twenty-two million, two hundred eighty-nine thousand, five hundred fifty-seven".