1045791013 has 4 divisors (see below), whose sum is σ = 1045981728. Its totient is φ = 1045600300.

The previous prime is 1045791001. The next prime is 1045791041. The reversal of 1045791013 is 3101975401.

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.

It is a cyclic number.

It is not a de Polignac number, because 1045791013 - 2¹³ = 1045782821 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 (1045791083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86881 + ... + 98182.

It is an arithmetic number, because the mean of its divisors is an integer number (261495432).

Almost surely, 2^1045791013 is an apocalyptic number.

It is an amenable number.

1045791013 is a deficient number, since it is larger than the sum of its proper divisors (190715).

1045791013 is an equidigital number, since it uses as much as digits as its factorization.

1045791013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190714.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1045791013 is about 32338.6921968097. The cubic root of 1045791013 is about 1015.0364431575.

The spelling of 1045791013 in words is "one billion, forty-five million, seven hundred ninety-one thousand, thirteen".