231449 has 8 divisors (see below), whose sum is σ = 250560. Its totient is φ = 213136.

The previous prime is 231443. The next prime is 231461. The reversal of 231449 is 944132.

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

It is a cyclic number.

It is not a de Polignac number, because 231449 - 2⁴ = 231433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231443) 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 in 7 ways as a sum of consecutive naturals, for example, 494 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (31320).

2²³¹⁴⁴⁹ is an apocalyptic number.

231449 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

231449 is a deficient number, since it is larger than the sum of its proper divisors (19111).

231449 is a wasteful number, since it uses less digits than its factorization.

231449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its digits is 864, while the sum is 23.

The square root of 231449 is about 481.0914673947. The cubic root of 231449 is about 61.3976529358.

The spelling of 231449 in words is "two hundred thirty-one thousand, four hundred forty-nine".