111204456 has 64 divisors (see below), whose sum is σ = 307860480. Its totient is φ = 33190080.

The previous prime is 111204449. The next prime is 111204469. The reversal of 111204456 is 654402111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14545 + ... + 20831.

It is an arithmetic number, because the mean of its divisors is an integer number (4810320).

Almost surely, 2^111204456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111204456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153930240).

111204456 is an abundant number, since it is smaller than the sum of its proper divisors (196656024).

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

111204456 is a wasteful number, since it uses less digits than its factorization.

111204456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374 (or 6370 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 111204456 is about 10545.3523411975. The cubic root of 111204456 is about 480.8844457125.

Adding to 111204456 its reverse (654402111), we get a palindrome (765606567).

It can be divided in two parts, 11120 and 4456, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 111204456 in words is "one hundred eleven million, two hundred four thousand, four hundred fifty-six".