812305534 has 8 divisors (see below), whose sum is σ = 1218804768. Its totient is φ = 406037280.

The previous prime is 812305531. The next prime is 812305579. The reversal of 812305534 is 435503218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 812305496 and 812305505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812305531) 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, 48667 + ... + 63190.

It is an arithmetic number, because the mean of its divisors is an integer number (152350596).

Almost surely, 2^812305534 is an apocalyptic number.

812305534 is a deficient number, since it is larger than the sum of its proper divisors (406499234).

812305534 is a wasteful number, since it uses less digits than its factorization.

812305534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115490.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 812305534 is about 28500.9742640493. The cubic root of 812305534 is about 933.0533374678.

The spelling of 812305534 in words is "eight hundred twelve million, three hundred five thousand, five hundred thirty-four".