231534066 has 16 divisors (see below), whose sum is σ = 463888800. Its totient is φ = 77041248.

The previous prime is 231534013. The next prime is 231534091. The reversal of 231534066 is 660435132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30496 + ... + 37323.

It is an arithmetic number, because the mean of its divisors is an integer number (28993050).

Almost surely, 2^231534066 is an apocalyptic number.

231534066 is an abundant number, since it is smaller than the sum of its proper divisors (232354734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231534066 is a wasteful number, since it uses less digits than its factorization.

231534066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68393.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 231534066 is about 15216.2434917426. The cubic root of 231534066 is about 614.0517397787.

Adding to 231534066 its reverse (660435132), we get a palindrome (891969198).

The spelling of 231534066 in words is "two hundred thirty-one million, five hundred thirty-four thousand, sixty-six".