1045857907 has 4 divisors (see below), whose sum is σ = 1100903080. Its totient is φ = 990812736.

The previous prime is 1045857877. The next prime is 1045857919. The reversal of 1045857907 is 7097585401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7097585401 = 1049 ⋅6766049.

It is a cyclic number.

It is not a de Polignac number, because 1045857907 - 2¹⁵ = 1045825139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045857107) 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 3 ways as a sum of consecutive naturals, for example, 27522558 + ... + 27522595.

It is an arithmetic number, because the mean of its divisors is an integer number (275225770).

Almost surely, 2^1045857907 is an apocalyptic number.

1045857907 is a deficient number, since it is larger than the sum of its proper divisors (55045173).

1045857907 is an equidigital number, since it uses as much as digits as its factorization.

1045857907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55045172.

The product of its (nonzero) digits is 352800, while the sum is 46.

The square root of 1045857907 is about 32339.7264521517. The cubic root of 1045857907 is about 1015.0580849576.

The spelling of 1045857907 in words is "one billion, forty-five million, eight hundred fifty-seven thousand, nine hundred seven".