123058 has 8 divisors (see below), whose sum is σ = 198828. Its totient is φ = 56784.

The previous prime is 123049. The next prime is 123059. The reversal of 123058 is 850321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 106929 + 16129 = 327^2 + 127^2 .

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

It is a super-3 number, since 3×123058³ = 5590502062533336, which contains 333 as substring.

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (123059) 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, 2341 + ... + 2392.

2¹²³⁰⁵⁸ is an apocalyptic number.

123058 is a deficient number, since it is larger than the sum of its proper divisors (75770).

123058 is a wasteful number, since it uses less digits than its factorization.

123058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123058 is about 350.7962371520. The cubic root of 123058 is about 49.7397140423.

Adding to 123058 its reverse (850321), we get a palindrome (973379).

The spelling of 123058 in words is "one hundred twenty-three thousand, fifty-eight".