2012009149 has 2 divisors, whose sum is σ = 2012009150. Its totient is φ = 2012009148.

The previous prime is 2012009093. The next prime is 2012009179. The reversal of 2012009149 is 9419002102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1857006649 + 155002500 = 43093^2 + 12450^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012009149 - 2⁹ = 2012008637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012009179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006004574 + 1006004575.

It is an arithmetic number, because the mean of its divisors is an integer number (1006004575).

Almost surely, 2^2012009149 is an apocalyptic number.

It is an amenable number.

2012009149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012009149 is an equidigital number, since it uses as much as digits as its factorization.

2012009149 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2012009149 is about 44855.4249673325. The cubic root of 2012009149 is about 1262.4377825628.

The spelling of 2012009149 in words is "two billion, twelve million, nine thousand, one hundred forty-nine".