1045665125 has 16 divisors (see below), whose sum is σ = 1320725952. Its totient is φ = 826445200.

The previous prime is 1045665113. The next prime is 1045665157. The reversal of 1045665125 is 5215665401.

It is not a de Polignac number, because 1045665125 - 2⁴ = 1045665109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 40019 + ... + 60768.

It is an arithmetic number, because the mean of its divisors is an integer number (82545372).

Almost surely, 2^1045665125 is an apocalyptic number.

It is an amenable number.

1045665125 is a deficient number, since it is larger than the sum of its proper divisors (275060827).

1045665125 is an equidigital number, since it uses as much as digits as its factorization.

1045665125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100885 (or 100875 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1045665125 is about 32336.7457391742. The cubic root of 1045665125 is about 1014.9957128925.

The spelling of 1045665125 in words is "one billion, forty-five million, six hundred sixty-five thousand, one hundred twenty-five".