1125418536 has 224 divisors, whose sum is σ = 3527154720. Its totient is φ = 333590400.

The previous prime is 1125418531. The next prime is 1125418549. The reversal of 1125418536 is 6358145211.

1125418536 is a `hidden beast` number, since 1 + 1 + 2 + 541 + 85 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (28800) is a multiple of the sum of its prime divisors (400).

It is a self number, because there is not a number n which added to its sum of digits gives 1125418536.

It is not an unprimeable number, because it can be changed into a prime (1125418531) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3399891 + ... + 3400221.

Almost surely, 2^1125418536 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 1125418536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763577360).

1125418536 is an abundant number, since it is smaller than the sum of its proper divisors (2401736184).

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

1125418536 is a wasteful number, since it uses less digits than its factorization.

1125418536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 400 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1125418536 is about 33547.2582486259. The cubic root of 1125418536 is about 1040.1708718256.

The spelling of 1125418536 in words is "one billion, one hundred twenty-five million, four hundred eighteen thousand, five hundred thirty-six".