1125528103 has 4 divisors (see below), whose sum is σ = 1286317840. Its totient is φ = 964738368.

The previous prime is 1125528101. The next prime is 1125528113. The reversal of 1125528103 is 3018255211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3018255211 = 5281 ⋅571531.

It is a cyclic number.

It is not a de Polignac number, because 1125528103 - 2¹ = 1125528101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125528101) by changing a digit.

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, 80394858 + ... + 80394871.

It is an arithmetic number, because the mean of its divisors is an integer number (321579460).

Almost surely, 2^1125528103 is an apocalyptic number.

1125528103 is a deficient number, since it is larger than the sum of its proper divisors (160789737).

1125528103 is an equidigital number, since it uses as much as digits as its factorization.

1125528103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160789736.

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

The square root of 1125528103 is about 33548.8912335415. The cubic root of 1125528103 is about 1040.2046265874.

The spelling of 1125528103 in words is "one billion, one hundred twenty-five million, five hundred twenty-eight thousand, one hundred three".