8531213245 has 16 divisors (see below), whose sum is σ = 10688791680. Its totient is φ = 6524426304.

The previous prime is 8531213231. The next prime is 8531213297. The reversal of 8531213245 is 5423121358.

It is a cyclic number.

It is not a de Polignac number, because 8531213245 - 2⁹ = 8531212733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8531213245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185002 + ... + 226468.

It is an arithmetic number, because the mean of its divisors is an integer number (668049480).

Almost surely, 2^8531213245 is an apocalyptic number.

It is an amenable number.

8531213245 is a deficient number, since it is larger than the sum of its proper divisors (2157578435).

8531213245 is a wasteful number, since it uses less digits than its factorization.

8531213245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43284.

The product of its digits is 28800, while the sum is 34.

The square root of 8531213245 is about 92364.5670427789. The cubic root of 8531213245 is about 2043.3225719815.

The spelling of 8531213245 in words is "eight billion, five hundred thirty-one million, two hundred thirteen thousand, two hundred forty-five".