1045125403 has 16 divisors (see below), whose sum is σ = 1241210880. Its totient is φ = 861015456.

The previous prime is 1045125401. The next prime is 1045125407. The reversal of 1045125403 is 3045215401.

It is a happy number.

It is not a de Polignac number, because 1045125403 - 2¹ = 1045125401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045125401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33726 + ... + 56812.

It is an arithmetic number, because the mean of its divisors is an integer number (77575680).

Almost surely, 2^1045125403 is an apocalyptic number.

1045125403 is a deficient number, since it is larger than the sum of its proper divisors (196085477).

1045125403 is a wasteful number, since it uses less digits than its factorization.

1045125403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23346.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1045125403 is about 32328.3993262890. The cubic root of 1045125403 is about 1014.8210521966.

The spelling of 1045125403 in words is "one billion, forty-five million, one hundred twenty-five thousand, four hundred three".