12159251 has 16 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 10843680.

The previous prime is 12159187. The next prime is 12159281. The reversal of 12159251 is 15295121.

It is a cyclic number.

It is not a de Polignac number, because 12159251 - 2⁶ = 12159187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12159251.

It is not an unprimeable number, because it can be changed into a prime (12159281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63566 + ... + 63756.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^12159251 is an apocalyptic number.

12159251 is a deficient number, since it is larger than the sum of its proper divisors (1388269).

12159251 is a wasteful number, since it uses less digits than its factorization.

12159251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its digits is 900, while the sum is 26.

The square root of 12159251 is about 3487.0117579383. The cubic root of 12159251 is about 229.9511616531.

The spelling of 12159251 in words is "twelve million, one hundred fifty-nine thousand, two hundred fifty-one".