1045943917 has 8 divisors (see below), whose sum is σ = 1064191680. Its totient is φ = 1027713600.

The previous prime is 1045943893. The next prime is 1045944001. The reversal of 1045943917 is 7193495401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1045943917 - 2¹⁹ = 1045419629 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 (1045943117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192792 + ... + 198142.

It is an arithmetic number, because the mean of its divisors is an integer number (133023960).

Almost surely, 2^1045943917 is an apocalyptic number.

It is an amenable number.

1045943917 is a deficient number, since it is larger than the sum of its proper divisors (18247763).

1045943917 is an equidigital number, since it uses as much as digits as its factorization.

1045943917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8723.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1045943917 is about 32341.0562134263. The cubic root of 1045943917 is about 1015.0859098824.

The spelling of 1045943917 in words is "one billion, forty-five million, nine hundred forty-three thousand, nine hundred seventeen".