122643425 has 12 divisors (see below), whose sum is σ = 152311680. Its totient is φ = 97963920.

The previous prime is 122643413. The next prime is 122643467. The reversal of 122643425 is 524346221.

It is not a de Polignac number, because 122643425 - 2²⁰ = 121594849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14564 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (12692640).

Almost surely, 2^122643425 is an apocalyptic number.

It is an amenable number.

122643425 is a deficient number, since it is larger than the sum of its proper divisors (29668255).

122643425 is an equidigital number, since it uses as much as digits as its factorization.

122643425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7552 (or 7547 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 122643425 is about 11074.4491962354. The cubic root of 122643425 is about 496.8379449708.

Adding to 122643425 its reverse (524346221), we get a palindrome (646989646).

The spelling of 122643425 in words is "one hundred twenty-two million, six hundred forty-three thousand, four hundred twenty-five".