231464 has 8 divisors (see below), whose sum is σ = 434010. Its totient is φ = 115728.

The previous prime is 231463. The next prime is 231479. The reversal of 231464 is 464132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 195364 + 36100 = 442^2 + 190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231464.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14459 + ... + 14474.

2²³¹⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

231464 is a deficient number, since it is larger than the sum of its proper divisors (202546).

231464 is a wasteful number, since it uses less digits than its factorization.

231464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28939 (or 28935 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 231464 is about 481.1070566932. The cubic root of 231464 is about 61.3989792825.

Adding to 231464 its reverse (464132), we get a palindrome (695596).

The spelling of 231464 in words is "two hundred thirty-one thousand, four hundred sixty-four".