12623109 has 8 divisors (see below), whose sum is σ = 17116320. Its totient is φ = 8272656.

The previous prime is 12623089. The next prime is 12623189. The reversal of 12623109 is 90132621.

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

It is not a de Polignac number, because 12623109 - 2⁵ = 12623077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12623189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35482 + ... + 35835.

It is an arithmetic number, because the mean of its divisors is an integer number (2139540).

Almost surely, 2^12623109 is an apocalyptic number.

It is an amenable number.

12623109 is a deficient number, since it is larger than the sum of its proper divisors (4493211).

12623109 is an equidigital number, since it uses as much as digits as its factorization.

12623109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71379.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 12623109 is about 3552.9014903315. The cubic root of 12623109 is about 232.8388491926.

It can be divided in two parts, 1262 and 3109, that added together give a triangular number (4371 = T₉₃).

The spelling of 12623109 in words is "twelve million, six hundred twenty-three thousand, one hundred nine".