231466 has 4 divisors (see below), whose sum is σ = 347202. Its totient is φ = 115732.

The previous prime is 231463. The next prime is 231479. The reversal of 231466 is 664132.

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

It can be written as a sum of positive squares in only one way, i.e., 229441 + 2025 = 479^2 + 45^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (231461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57865 + ... + 57868.

2²³¹⁴⁶⁶ is an apocalyptic number.

231466 is a deficient number, since it is larger than the sum of its proper divisors (115736).

231466 is a wasteful number, since it uses less digits than its factorization.

231466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115735.

The product of its digits is 864, while the sum is 22.

The square root of 231466 is about 481.1091352282. The cubic root of 231466 is about 61.3991561245.

Adding to 231466 its reverse (664132), we get a palindrome (895598).

The spelling of 231466 in words is "two hundred thirty-one thousand, four hundred sixty-six".