1125412563 has 32 divisors (see below), whose sum is σ = 1808635392. Its totient is φ = 614028800.

The previous prime is 1125412549. The next prime is 1125412571. The reversal of 1125412563 is 3652145211.

It is not a de Polignac number, because 1125412563 - 2⁵ = 1125412531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1125412563.

It is not an unprimeable number, because it can be changed into a prime (1125412523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30708 + ... + 56513.

It is an arithmetic number, because the mean of its divisors is an integer number (56519856).

Almost surely, 2^1125412563 is an apocalyptic number.

1125412563 is a deficient number, since it is larger than the sum of its proper divisors (683222829).

1125412563 is a wasteful number, since it uses less digits than its factorization.

1125412563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87275.

The product of its digits is 7200, while the sum is 30.

The square root of 1125412563 is about 33547.1692248392. The cubic root of 1125412563 is about 1040.1690316357.

Adding to 1125412563 its reverse (3652145211), we get a palindrome (4777557774).

The spelling of 1125412563 in words is "one billion, one hundred twenty-five million, four hundred twelve thousand, five hundred sixty-three".