822065131 has 4 divisors (see below), whose sum is σ = 822934152. Its totient is φ = 821196112.

The previous prime is 822065093. The next prime is 822065173. The reversal of 822065131 is 131560228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-822065131 is a prime.

It is a super-2 number, since 2×822065131² = 1351582159212094322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 822065131.

It is not an unprimeable number, because it can be changed into a prime (822060131) 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, 433090 + ... + 434983.

It is an arithmetic number, because the mean of its divisors is an integer number (205733538).

Almost surely, 2^822065131 is an apocalyptic number.

822065131 is a deficient number, since it is larger than the sum of its proper divisors (869021).

822065131 is an equidigital number, since it uses as much as digits as its factorization.

822065131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869020.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 822065131 is about 28671.6782034118. The cubic root of 822065131 is about 936.7752525141.

The spelling of 822065131 in words is "eight hundred twenty-two million, sixty-five thousand, one hundred thirty-one".