12150109 has 4 divisors (see below), whose sum is σ = 12542080. Its totient is φ = 11758140.

The previous prime is 12150107. The next prime is 12150137. The reversal of 12150109 is 90105121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90105121 = 103 ⋅874807.

It is a cyclic number.

It is not a de Polignac number, because 12150109 - 2¹ = 12150107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150107) 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, 195939 + ... + 196000.

It is an arithmetic number, because the mean of its divisors is an integer number (3135520).

Almost surely, 2^12150109 is an apocalyptic number.

It is an amenable number.

12150109 is a deficient number, since it is larger than the sum of its proper divisors (391971).

12150109 is an equidigital number, since it uses as much as digits as its factorization.

12150109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391970.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 12150109 is about 3485.7006469288. The cubic root of 12150109 is about 229.8935171870.

The spelling of 12150109 in words is "twelve million, one hundred fifty thousand, one hundred nine".