1125726568 has 16 divisors (see below), whose sum is σ = 2111518980. Its totient is φ = 562654848.

The previous prime is 1125726493. The next prime is 1125726571. The reversal of 1125726568 is 8656275211.

It can be written as a sum of positive squares in 2 ways, for example, as 1107425284 + 18301284 = 33278^2 + 4278^2 .

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, 1771 + ... + 47482.

Almost surely, 2^1125726568 is an apocalyptic number.

It is an amenable number.

1125726568 is a deficient number, since it is larger than the sum of its proper divisors (985792412).

1125726568 is a wasteful number, since it uses less digits than its factorization.

1125726568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52116 (or 52112 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 1125726568 is about 33551.8489505422. The cubic root of 1125726568 is about 1040.2657629487.

The spelling of 1125726568 in words is "one billion, one hundred twenty-five million, seven hundred twenty-six thousand, five hundred sixty-eight".