123258 has 8 divisors (see below), whose sum is σ = 246528. Its totient is φ = 41084.

The previous prime is 123239. The next prime is 123259. The reversal of 123258 is 852321.

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

123258 is an admirable number.

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

It is not an unprimeable number, because it can be changed into a prime (123259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10266 + ... + 10277.

It is an arithmetic number, because the mean of its divisors is an integer number (30816).

2¹²³²⁵⁸ is an apocalyptic number.

123258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123258 is a wasteful number, since it uses less digits than its factorization.

123258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20548.

The product of its digits is 480, while the sum is 21.

The square root of 123258 is about 351.0811871918. The cubic root of 123258 is about 49.7666459453.

Adding to 123258 its reverse (852321), we get a palindrome (975579).

The spelling of 123258 in words is "one hundred twenty-three thousand, two hundred fifty-eight".