122643056 has 10 divisors (see below), whose sum is σ = 237620952. Its totient is φ = 61321520.

The previous prime is 122643047. The next prime is 122643071. The reversal of 122643056 is 650346221.

122643056 is nontrivially palindromic in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832580 + ... + 3832611.

Almost surely, 2^122643056 is an apocalyptic number.

122643056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122643056 is a deficient number, since it is larger than the sum of its proper divisors (114977896).

122643056 is an equidigital number, since it uses as much as digits as its factorization.

122643056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665199 (or 7665193 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 122643056 is about 11074.4325362521. The cubic root of 122643056 is about 496.8374466878.

Adding to 122643056 its reverse (650346221), we get a palindrome (772989277).

The spelling of 122643056 in words is "one hundred twenty-two million, six hundred forty-three thousand, fifty-six".