1125599912 has 16 divisors (see below), whose sum is σ = 2113159860. Its totient is φ = 562090624.

The previous prime is 1125599879. The next prime is 1125599927. The reversal of 1125599912 is 2199955211.

1125599912 = 4819² + 4820² + ... + 4866².

It can be written as a sum of positive squares in 2 ways, for example, as 1059762916 + 65836996 = 32554^2 + 8114^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81893 + ... + 94644.

Almost surely, 2^1125599912 is an apocalyptic number.

It is an amenable number.

1125599912 is a deficient number, since it is larger than the sum of its proper divisors (987559948).

1125599912 is a wasteful number, since it uses less digits than its factorization.

1125599912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177340 (or 177336 counting only the distinct ones).

The product of its digits is 72900, while the sum is 44.

The square root of 1125599912 is about 33549.9614306783. The cubic root of 1125599912 is about 1040.2267478966.

The spelling of 1125599912 in words is "one billion, one hundred twenty-five million, five hundred ninety-nine thousand, nine hundred twelve".