231536806 has 4 divisors (see below), whose sum is σ = 347305212. Its totient is φ = 115768402.

The previous prime is 231536797. The next prime is 231536813. The reversal of 231536806 is 608635132.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57884200 + ... + 57884203.

It is an arithmetic number, because the mean of its divisors is an integer number (86826303).

Almost surely, 2^231536806 is an apocalyptic number.

231536806 is a deficient number, since it is larger than the sum of its proper divisors (115768406).

231536806 is a wasteful number, since it uses less digits than its factorization.

231536806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115768405.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 231536806 is about 15216.3335268388. Note that the first 3 decimals coincide. The cubic root of 231536806 is about 614.0541620214.

The spelling of 231536806 in words is "two hundred thirty-one million, five hundred thirty-six thousand, eight hundred six".