12290851 has 2 divisors, whose sum is σ = 12290852. Its totient is φ = 12290850.

The previous prime is 12290843. The next prime is 12290893. The reversal of 12290851 is 15809221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12290851 - 2³ = 12290843 is a prime.

It is not a weakly prime, because it can be changed into another prime (12290801) 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, 6145425 + 6145426.

It is an arithmetic number, because the mean of its divisors is an integer number (6145426).

Almost surely, 2^12290851 is an apocalyptic number.

12290851 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290851 is an equidigital number, since it uses as much as digits as its factorization.

12290851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 12290851 is about 3505.8309999200. The cubic root of 12290851 is about 230.7777764556. Note that the first 5 decimals are identical.

The spelling of 12290851 in words is "twelve million, two hundred ninety thousand, eight hundred fifty-one".