1125432400 has 30 divisors (see below), whose sum is σ = 2703852302. Its totient is φ = 450172800.

The previous prime is 1125432379. The next prime is 1125432403. The reversal of 1125432400 is 42345211.

It can be written as a sum of positive squares in 3 ways, for example, as 284664384 + 840768016 = 16872^2 + 28996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125432403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1406391 + ... + 1407190.

Almost surely, 2^1125432400 is an apocalyptic number.

1125432400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125432400 is an abundant number, since it is smaller than the sum of its proper divisors (1578419902).

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

1125432400 is a wasteful number, since it uses less digits than its factorization.

1125432400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813599 (or 2813588 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1125432400 is about 33547.4648818655. The cubic root of 1125432400 is about 1040.1751430869.

Adding to 1125432400 its reverse (42345211), we get a palindrome (1167777611).

The spelling of 1125432400 in words is "one billion, one hundred twenty-five million, four hundred thirty-two thousand, four hundred".