1045855613 has 8 divisors (see below), whose sum is σ = 1146847296. Its totient is φ = 945849600.

The previous prime is 1045855607. The next prime is 1045855637. The reversal of 1045855613 is 3165585401.

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 1045855613 - 2¹⁸ = 1045593469 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 (1045855663) 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, 244193 + ... + 248438.

It is an arithmetic number, because the mean of its divisors is an integer number (143355912).

Almost surely, 2^1045855613 is an apocalyptic number.

It is an amenable number.

1045855613 is a deficient number, since it is larger than the sum of its proper divisors (100991683).

1045855613 is a wasteful number, since it uses less digits than its factorization.

1045855613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492835.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 1045855613 is about 32339.6909849182. The cubic root of 1045855613 is about 1015.0573428093.

It can be divided in two parts, 1045 and 855613, that added together give a palindrome (856658).

The spelling of 1045855613 in words is "one billion, forty-five million, eight hundred fifty-five thousand, six hundred thirteen".