1045125203 has 4 divisors (see below), whose sum is σ = 1045200528. Its totient is φ = 1045049880.

The previous prime is 1045125197. The next prime is 1045125217. The reversal of 1045125203 is 3025215401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1045125203 - 2²⁴ = 1028347987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045125223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10151 + ... + 46832.

It is an arithmetic number, because the mean of its divisors is an integer number (261300132).

Almost surely, 2^1045125203 is an apocalyptic number.

1045125203 is a deficient number, since it is larger than the sum of its proper divisors (75325).

1045125203 is an equidigital number, since it uses as much as digits as its factorization.

1045125203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75324.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1045125203 is about 32328.3962330333. The cubic root of 1045125203 is about 1014.8209874630.

The spelling of 1045125203 in words is "one billion, forty-five million, one hundred twenty-five thousand, two hundred three".