1125453636 has 48 divisors (see below), whose sum is σ = 3011975680. Its totient is φ = 363048480.

The previous prime is 1125453607. The next prime is 1125453647. The reversal of 1125453636 is 6363545211.

1125453636 is a `hidden beast` number, since 1 + 12 + 5 + 4 + 5 + 3 + 636 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1125453636.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164731 + ... + 171426.

Almost surely, 2^1125453636 is an apocalyptic number.

It is an amenable number.

1125453636 is an abundant number, since it is smaller than the sum of its proper divisors (1886522044).

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

1125453636 is a wasteful number, since it uses less digits than its factorization.

1125453636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336201 (or 336193 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1125453636 is about 33547.7813871499. The cubic root of 1125453636 is about 1040.1816854672.

Adding to 1125453636 its reverse (6363545211), we get a palindrome (7488998847).

The spelling of 1125453636 in words is "one billion, one hundred twenty-five million, four hundred fifty-three thousand, six hundred thirty-six".