2012641 has 2 divisors, whose sum is σ = 2012642. Its totient is φ = 2012640.

The previous prime is 2012639. The next prime is 2012657. The reversal of 2012641 is 1462102.

It is an a-pointer prime, because the next prime (2012657) can be obtained adding 2012641 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1904400 + 108241 = 1380^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012641 - 2¹ = 2012639 is a prime.

Together with 2012639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2012611) 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 as a sum of consecutive naturals, namely, 1006320 + 1006321.

It is an arithmetic number, because the mean of its divisors is an integer number (1006321).

2^2012641 is an apocalyptic number.

It is an amenable number.

2012641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012641 is an equidigital number, since it uses as much as digits as its factorization.

2012641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2012641 is about 1418.6757910108. The cubic root of 2012641 is about 126.2569920645.

Adding to 2012641 its reverse (1462102), we get a palindrome (3474743).

The spelling of 2012641 in words is "two million, twelve thousand, six hundred forty-one".