12006149 has 4 divisors (see below), whose sum is σ = 12118464. Its totient is φ = 11893836.

The previous prime is 12006133. The next prime is 12006179. The reversal of 12006149 is 94160021.

It is a happy number.

12006149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 94160021 = 79 ⋅1191899.

It is a cyclic number.

It is not a de Polignac number, because 12006149 - 2⁴ = 12006133 is a prime.

It is a super-2 number, since 2×12006149² = 288295227620402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006109) 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, 55997 + ... + 56210.

It is an arithmetic number, because the mean of its divisors is an integer number (3029616).

Almost surely, 2^12006149 is an apocalyptic number.

It is an amenable number.

12006149 is a deficient number, since it is larger than the sum of its proper divisors (112315).

12006149 is a wasteful number, since it uses less digits than its factorization.

12006149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112314.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12006149 is about 3464.9890331717. The cubic root of 12006149 is about 228.9819465437.

The spelling of 12006149 in words is "twelve million, six thousand, one hundred forty-nine".