122630556 has 24 divisors (see below), whose sum is σ = 290989440. Its totient is φ = 40183792.

The previous prime is 122630551. The next prime is 122630587. The reversal of 122630556 is 655036221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122630551) 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, 85896 + ... + 87311.

It is an arithmetic number, because the mean of its divisors is an integer number (12124560).

Almost surely, 2^122630556 is an apocalyptic number.

It is an amenable number.

122630556 is an abundant number, since it is smaller than the sum of its proper divisors (168358884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122630556 is a wasteful number, since it uses less digits than its factorization.

122630556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173273 (or 173271 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 122630556 is about 11073.8681588684. The cubic root of 122630556 is about 496.8205665934.

Adding to 122630556 its reverse (655036221), we get a palindrome (777666777).

The spelling of 122630556 in words is "one hundred twenty-two million, six hundred thirty thousand, five hundred fifty-six".