1121454432 has 144 divisors (see below), whose sum is σ = 3667652352. Its totient is φ = 318401280.

The previous prime is 1121454413. The next prime is 1121454479. The reversal of 1121454432 is 2344541211.

1121454432 is a `hidden beast` number, since 1 + 1 + 214 + 5 + 443 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 1121454396 and 1121454405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335007 + ... + 338337.

It is an arithmetic number, because the mean of its divisors is an integer number (25469808).

Almost surely, 2^1121454432 is an apocalyptic number.

1121454432 is a gapful number since it is divisible by the number (12) 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 1121454432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1833826176).

1121454432 is an abundant number, since it is smaller than the sum of its proper divisors (2546197920).

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

1121454432 is a wasteful number, since it uses less digits than its factorization.

1121454432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521 (or 3510 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1121454432 is about 33488.1237455908. The cubic root of 1121454432 is about 1038.9481574460.

Adding to 1121454432 its reverse (2344541211), we get a palindrome (3465995643).

The spelling of 1121454432 in words is "one billion, one hundred twenty-one million, four hundred fifty-four thousand, four hundred thirty-two".