122763820 has 12 divisors (see below), whose sum is σ = 257804064. Its totient is φ = 49105520.

The previous prime is 122763803. The next prime is 122763821. The reversal of 122763820 is 28367221.

It is not an unprimeable number, because it can be changed into a prime (122763821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3069076 + ... + 3069115.

It is an arithmetic number, because the mean of its divisors is an integer number (21483672).

Almost surely, 2^122763820 is an apocalyptic number.

122763820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122763820 is an abundant number, since it is smaller than the sum of its proper divisors (135040244).

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

122763820 is a wasteful number, since it uses less digits than its factorization.

122763820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138200 (or 6138198 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 122763820 is about 11079.8835733955. The cubic root of 122763820 is about 497.0004682686. Note that the first 3 decimals are identical.

The spelling of 122763820 in words is "one hundred twenty-two million, seven hundred sixty-three thousand, eight hundred twenty".