231626 has 8 divisors (see below), whose sum is σ = 349920. Its totient is φ = 114988.

The previous prime is 231613. The next prime is 231631. The reversal of 231626 is 626132.

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

It is a junction number, because it is equal to n+sod(n) for n = 231598 and 231607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35 + ... + 681.

It is an arithmetic number, because the mean of its divisors is an integer number (43740).

2²³¹⁶²⁶ is an apocalyptic number.

231626 is a deficient number, since it is larger than the sum of its proper divisors (118294).

231626 is a wasteful number, since it uses less digits than its factorization.

231626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828.

The product of its digits is 432, while the sum is 20.

The square root of 231626 is about 481.2753889407. The cubic root of 231626 is about 61.4133001777.

Adding to 231626 its reverse (626132), we get a palindrome (857758).

The spelling of 231626 in words is "two hundred thirty-one thousand, six hundred twenty-six".