1125524161 has 6 divisors (see below), whose sum is σ = 1163003586. Its totient is φ = 1089216000.

The previous prime is 1125524129. The next prime is 1125524167. The reversal of 1125524161 is 1614255211.

It can be written as a sum of positive squares in only one way, i.e., 778410000 + 347114161 = 27900^2 + 18631^2 .

It is not a de Polignac number, because 1125524161 - 2⁵ = 1125524129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125524167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 584640 + ... + 586561.

It is an arithmetic number, because the mean of its divisors is an integer number (193833931).

Almost surely, 2^1125524161 is an apocalyptic number.

It is an amenable number.

1125524161 is a deficient number, since it is larger than the sum of its proper divisors (37479425).

1125524161 is an equidigital number, since it uses as much as digits as its factorization.

1125524161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171263 (or 1171232 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 1125524161 is about 33548.8324834114. The cubic root of 1125524161 is about 1040.2034121970.

Adding to 1125524161 its reverse (1614255211), we get a palindrome (2739779372).

The spelling of 1125524161 in words is "one billion, one hundred twenty-five million, five hundred twenty-four thousand, one hundred sixty-one".