1125454434 has 48 divisors (see below), whose sum is σ = 2575086528. Its totient is φ = 325916928.

The previous prime is 1125454397. The next prime is 1125454457. The reversal of 1125454434 is 4344545211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1125454395 and 1125454404.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2422 + ... + 47505.

It is an arithmetic number, because the mean of its divisors is an integer number (53647636).

Almost surely, 2^1125454434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125454434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287543264).

1125454434 is an abundant number, since it is smaller than the sum of its proper divisors (1449632094).

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

1125454434 is a wasteful number, since it uses less digits than its factorization.

1125454434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49979 (or 49962 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 1125454434 is about 33547.7932806317. The cubic root of 1125454434 is about 1040.1819313132.

Adding to 1125454434 its reverse (4344545211), we get a palindrome (5469999645).

The spelling of 1125454434 in words is "one billion, one hundred twenty-five million, four hundred fifty-four thousand, four hundred thirty-four".