1045391933 has 4 divisors (see below), whose sum is σ = 1045623648. Its totient is φ = 1045160220.

The previous prime is 1045391927. The next prime is 1045391983. The reversal of 1045391933 is 3391935401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3391935401 = 31 ⋅109417271.

It is a cyclic number.

It is not a de Polignac number, because 1045391933 - 2⁴ = 1045391917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045391903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108953 + ... + 118158.

It is an arithmetic number, because the mean of its divisors is an integer number (261405912).

Almost surely, 2^1045391933 is an apocalyptic number.

It is an amenable number.

1045391933 is a deficient number, since it is larger than the sum of its proper divisors (231715).

1045391933 is an equidigital number, since it uses as much as digits as its factorization.

1045391933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231714.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 1045391933 is about 32332.5212904902. The cubic root of 1045391933 is about 1014.9073121053.

The spelling of 1045391933 in words is "one billion, forty-five million, three hundred ninety-one thousand, nine hundred thirty-three".