4012258561 has 2 divisors, whose sum is σ = 4012258562. Its totient is φ = 4012258560.

The previous prime is 4012258427. The next prime is 4012258589. The reversal of 4012258561 is 1658522104.

It is a happy number.

4012258561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2126962161 + 1885296400 = 46119^2 + 43420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4012258561 is a prime.

It is not a weakly prime, because it can be changed into another prime (4012298561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006129280 + 2006129281.

It is an arithmetic number, because the mean of its divisors is an integer number (2006129281).

Almost surely, 2^4012258561 is an apocalyptic number.

It is an amenable number.

4012258561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012258561 is an equidigital number, since it uses as much as digits as its factorization.

4012258561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 4012258561 is about 63342.3915004794. The cubic root of 4012258561 is about 1589.0210026237.

The spelling of 4012258561 in words is "four billion, twelve million, two hundred fifty-eight thousand, five hundred sixty-one".