123234 has 32 divisors (see below), whose sum is σ = 276480. Its totient is φ = 36432.

The previous prime is 123229. The next prime is 123239. The reversal of 123234 is 432321.

123234 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (123229) and next prime (123239).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123239) by changing a digit.

123234 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2599 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2^{123234} is an apocalyptic number.

123234 is the 188-th nonagonal number.

123234 is an abundant number, since it is smaller than the sum of its proper divisors (153246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123234 is a wasteful number, since it uses less digits than its factorization.

123234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94.

The product of its digits is 144, while the sum is 15.

The square root of 123234 is about 351.0470053996. The cubic root of 123234 is about 49.7634156559.

Adding to 123234 its reverse (432321), we get a palindrome (555555).

It can be divided in two parts, 123 and 234, that multiplied together give a palindrome (28782).

The spelling of 123234 in words is "one hundred twenty-three thousand, two hundred thirty-four".

Divisors: 1 2 3 6 19 23 38 46 47 57 69 94 114 138 141 282 437 874 893 1081 1311 1786 2162 2622 2679 3243 5358 6486 20539 41078 61617 123234

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