12858061 has 2 divisors, whose sum is σ = 12858062. Its totient is φ = 12858060.

The previous prime is 12858017. The next prime is 12858067. The reversal of 12858061 is 16085821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9036036 + 3822025 = 3006^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 12858061 - 2⁹ = 12857549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12858067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6429030 + 6429031.

It is an arithmetic number, because the mean of its divisors is an integer number (6429031).

Almost surely, 2^12858061 is an apocalyptic number.

It is an amenable number.

12858061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12858061 is an equidigital number, since it uses as much as digits as its factorization.

12858061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 12858061 is about 3585.8138546221. The cubic root of 12858061 is about 234.2745760228.

The spelling of 12858061 in words is "twelve million, eight hundred fifty-eight thousand, sixty-one".