2012015549 has 2 divisors, whose sum is σ = 2012015550. Its totient is φ = 2012015548.

The previous prime is 2012015539. The next prime is 2012015557. The reversal of 2012015549 is 9455102102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1066022500 + 945993049 = 32650^2 + 30757^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012015549 - 2²⁸ = 1743580093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012015519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006007774 + 1006007775.

It is an arithmetic number, because the mean of its divisors is an integer number (1006007775).

Almost surely, 2^2012015549 is an apocalyptic number.

It is an amenable number.

2012015549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012015549 is an equidigital number, since it uses as much as digits as its factorization.

2012015549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2012015549 is about 44855.4963075875. The cubic root of 2012015549 is about 1262.4391211241.

The spelling of 2012015549 in words is "two billion, twelve million, fifteen thousand, five hundred forty-nine".