122003456 has 56 divisors (see below), whose sum is σ = 249480324. Its totient is φ = 59637760.

The previous prime is 122003447. The next prime is 122003461. The reversal of 122003456 is 654300221.

It can be written as a sum of positive squares in 2 ways, for example, as 116985856 + 5017600 = 10816^2 + 2240^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434036 + ... + 434316.

Almost surely, 2^122003456 is an apocalyptic number.

122003456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122003456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124740162).

122003456 is an abundant number, since it is smaller than the sum of its proper divisors (127476868).

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

122003456 is an frugal number, since it uses more digits than its factorization.

122003456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 122003456 is about 11045.5174618485. The cubic root of 122003456 is about 495.9722495747.

Adding to 122003456 its reverse (654300221), we get a palindrome (776303677).

The spelling of 122003456 in words is "one hundred twenty-two million, three thousand, four hundred fifty-six".