231946 has 16 divisors (see below), whose sum is σ = 409248. Its totient is φ = 97200.

The previous prime is 231943. The next prime is 231947. The reversal of 231946 is 649132.

231946 is nontrivially palindromic in base 6.

231946 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

231946 is an undulating number in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 231946.

It is not an unprimeable number, because it can be changed into a prime (231943) 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, 120 + ... + 691.

It is an arithmetic number, because the mean of its divisors is an integer number (25578).

2²³¹⁹⁴⁶ is an apocalyptic number.

231946 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

231946 is a deficient number, since it is larger than the sum of its proper divisors (177302).

231946 is a wasteful number, since it uses less digits than its factorization.

231946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837.

The product of its digits is 1296, while the sum is 25.

The square root of 231946 is about 481.6077241905. The cubic root of 231946 is about 61.4415687556.

The spelling of 231946 in words is "two hundred thirty-one thousand, nine hundred forty-six".