12251109 has 16 divisors (see below), whose sum is σ = 17926272. Its totient is φ = 7395648.

The previous prime is 12251093. The next prime is 12251131. The reversal of 12251109 is 90115221.

It is not a de Polignac number, because 12251109 - 2⁴ = 12251093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (1120392).

Almost surely, 2^12251109 is an apocalyptic number.

It is an amenable number.

12251109 is a deficient number, since it is larger than the sum of its proper divisors (5675163).

12251109 is a wasteful number, since it uses less digits than its factorization.

12251109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 12251109 is about 3500.1584249859. The cubic root of 12251109 is about 230.5287708200.

The spelling of 12251109 in words is "twelve million, two hundred fifty-one thousand, one hundred nine".