12123958 has 48 divisors (see below), whose sum is σ = 24246432. Its totient is φ = 4435200.

The previous prime is 12123953. The next prime is 12123959. The reversal of 12123958 is 85932121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28588 + ... + 29008.

It is an arithmetic number, because the mean of its divisors is an integer number (505134).

Almost surely, 2^12123958 is an apocalyptic number.

12123958 is a deficient number, since it is larger than the sum of its proper divisors (12122474).

12123958 is a wasteful number, since it uses less digits than its factorization.

12123958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 458 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 12123958 is about 3481.9474436011. The cubic root of 12123958 is about 229.7284634207.

The spelling of 12123958 in words is "twelve million, one hundred twenty-three thousand, nine hundred fifty-eight".