12000149 has 6 divisors (see below), whose sum is σ = 13959414. Its totient is φ = 10285800.

The previous prime is 12000133. The next prime is 12000239. The reversal of 12000149 is 94100021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7879249 + 4120900 = 2807^2 + 2030^2 .

It is not a de Polignac number, because 12000149 - 2⁴ = 12000133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12008149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122402 + ... + 122499.

It is an arithmetic number, because the mean of its divisors is an integer number (2326569).

Almost surely, 2^12000149 is an apocalyptic number.

It is an amenable number.

12000149 is a deficient number, since it is larger than the sum of its proper divisors (1959265).

12000149 is an equidigital number, since it uses as much as digits as its factorization.

12000149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244915 (or 244908 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 12000149 is about 3464.1231213685. The cubic root of 12000149 is about 228.9437960758.

The spelling of 12000149 in words is "twelve million, one hundred forty-nine", and thus it is an aban number.