810233156 has 6 divisors (see below), whose sum is σ = 1417908030. Its totient is φ = 405116576.

The previous prime is 810233129. The next prime is 810233161. The reversal of 810233156 is 651332018.

It can be written as a sum of positive squares in only one way, i.e., 410872900 + 399360256 = 20270^2 + 19984^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101279141 + ... + 101279148.

It is an arithmetic number, because the mean of its divisors is an integer number (236318005).

Almost surely, 2^810233156 is an apocalyptic number.

It is an amenable number.

810233156 is a deficient number, since it is larger than the sum of its proper divisors (607674874).

810233156 is a wasteful number, since it uses less digits than its factorization.

810233156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202558293 (or 202558291 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 810233156 is about 28464.5947801826. The cubic root of 810233156 is about 932.2591839344.

The spelling of 810233156 in words is "eight hundred ten million, two hundred thirty-three thousand, one hundred fifty-six".