12123590 has 16 divisors (see below), whose sum is σ = 21863088. Its totient is φ = 4840416.

The previous prime is 12123589. The next prime is 12123607. The reversal of 12123590 is 9532121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8144 + ... + 9516.

It is an arithmetic number, because the mean of its divisors is an integer number (1366443).

Almost surely, 2^12123590 is an apocalyptic number.

12123590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123590 is a deficient number, since it is larger than the sum of its proper divisors (9739498).

12123590 is a wasteful number, since it uses less digits than its factorization.

12123590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 12123590 is about 3481.8945992089. The cubic root of 12123590 is about 229.7261390717.

The spelling of 12123590 in words is "twelve million, one hundred twenty-three thousand, five hundred ninety".