1121525188 has 12 divisors (see below), whose sum is σ = 2243050432. Its totient is φ = 480653640.

The previous prime is 1121525147. The next prime is 1121525201. The reversal of 1121525188 is 8815251211.

It is a happy number.

1121525188 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20027208 + ... + 20027263.

Almost surely, 2^1121525188 is an apocalyptic number.

It is an amenable number.

1121525188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1121525188 is a wasteful number, since it uses less digits than its factorization.

1121525188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40054482 (or 40054480 counting only the distinct ones).

The product of its digits is 6400, while the sum is 34.

The square root of 1121525188 is about 33489.1801631512. The cubic root of 1121525188 is about 1038.9700071285.

Adding to 1121525188 its reverse (8815251211), we get a palindrome (9936776399).

The spelling of 1121525188 in words is "one billion, one hundred twenty-one million, five hundred twenty-five thousand, one hundred eighty-eight".