122643464 has 32 divisors (see below), whose sum is σ = 237081600. Its totient is φ = 59441280.

The previous prime is 122643413. The next prime is 122643467. The reversal of 122643464 is 464346221.

It is a self number, because there is not a number n which added to its sum of digits gives 122643464.

It is not an unprimeable number, because it can be changed into a prime (122643467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53657 + ... + 55895.

It is an arithmetic number, because the mean of its divisors is an integer number (7408800).

Almost surely, 2^122643464 is an apocalyptic number.

It is an amenable number.

122643464 is a deficient number, since it is larger than the sum of its proper divisors (114438136).

122643464 is a wasteful number, since it uses less digits than its factorization.

122643464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453 (or 2449 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 122643464 is about 11074.4509570452. The cubic root of 122643464 is about 496.8379976348.

Adding to 122643464 its reverse (464346221), we get a palindrome (586989685).

The spelling of 122643464 in words is "one hundred twenty-two million, six hundred forty-three thousand, four hundred sixty-four".