845621135 has 16 divisors (see below), whose sum is σ = 1029440640. Its totient is φ = 666731520.

The previous prime is 845621053. The next prime is 845621159. The reversal of 845621135 is 531126548.

It is not a de Polignac number, because 845621135 - 2¹⁴ = 845604751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 845621095 and 845621104.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 264245 + ... + 267425.

It is an arithmetic number, because the mean of its divisors is an integer number (64340040).

Almost surely, 2^845621135 is an apocalyptic number.

845621135 is a deficient number, since it is larger than the sum of its proper divisors (183819505).

845621135 is a wasteful number, since it uses less digits than its factorization.

845621135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938.

The product of its digits is 28800, while the sum is 35.

The square root of 845621135 is about 29079.5655916659. The cubic root of 845621135 is about 945.6387850016.

The spelling of 845621135 in words is "eight hundred forty-five million, six hundred twenty-one thousand, one hundred thirty-five".