12019249 has 4 divisors (see below), whose sum is σ = 13111920. Its totient is φ = 10926580.

The previous prime is 12019243. The next prime is 12019261. The reversal of 12019249 is 94291021.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 12019249 - 2⁹ = 12018737 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12019243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546319 + ... + 546340.

It is an arithmetic number, because the mean of its divisors is an integer number (3277980).

Almost surely, 2^12019249 is an apocalyptic number.

It is an amenable number.

12019249 is a deficient number, since it is larger than the sum of its proper divisors (1092671).

12019249 is a wasteful number, since it uses less digits than its factorization.

12019249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092670.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 12019249 is about 3466.8788556856. The cubic root of 12019249 is about 229.0651975838.

The spelling of 12019249 in words is "twelve million, nineteen thousand, two hundred forty-nine".