1125558116 has 12 divisors (see below), whose sum is σ = 1971876480. Its totient is φ = 562164840.

The previous prime is 1125558113. The next prime is 1125558143. The reversal of 1125558116 is 6118555211.

It is not an unprimeable number, because it can be changed into a prime (1125558113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149420 + ... + 156771.

It is an arithmetic number, because the mean of its divisors is an integer number (164323040).

Almost surely, 2^1125558116 is an apocalyptic number.

It is an amenable number.

1125558116 is a deficient number, since it is larger than the sum of its proper divisors (846318364).

1125558116 is a wasteful number, since it uses less digits than its factorization.

1125558116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307114 (or 307112 counting only the distinct ones).

The product of its digits is 12000, while the sum is 35.

The square root of 1125558116 is about 33549.3385329726. The cubic root of 1125558116 is about 1040.2138724350.

The spelling of 1125558116 in words is "one billion, one hundred twenty-five million, five hundred fifty-eight thousand, one hundred sixteen".