231664106 has 8 divisors (see below), whose sum is σ = 348492900. Its totient is φ = 115499808.

The previous prime is 231664099. The next prime is 231664109. The reversal of 231664106 is 601466132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 179318881 + 52345225 = 13391^2 + 7235^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231664109) 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, 165251 + ... + 166646.

Almost surely, 2^231664106 is an apocalyptic number.

231664106 is a deficient number, since it is larger than the sum of its proper divisors (116828794).

231664106 is a wasteful number, since it uses less digits than its factorization.

231664106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332248.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 231664106 is about 15220.5159570890. The cubic root of 231664106 is about 614.1666780034.

It can be divided in two parts, 23166 and 4106, that added together give a palindrome (27272).

The spelling of 231664106 in words is "two hundred thirty-one million, six hundred sixty-four thousand, one hundred six".