812305529 has 16 divisors (see below), whose sum is σ = 950444160. Its totient is φ = 679881600.

The previous prime is 812305519. The next prime is 812305531. The reversal of 812305529 is 925503218.

812305529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 812305529 - 2¹⁶ = 812239993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812305519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43742 + ... + 59480.

It is an arithmetic number, because the mean of its divisors is an integer number (59402760).

Almost surely, 2^812305529 is an apocalyptic number.

It is an amenable number.

812305529 is a deficient number, since it is larger than the sum of its proper divisors (138138631).

812305529 is a wasteful number, since it uses less digits than its factorization.

812305529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15920.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 812305529 is about 28500.9741763330. The cubic root of 812305529 is about 933.0533355534.

The spelling of 812305529 in words is "eight hundred twelve million, three hundred five thousand, five hundred twenty-nine".