606981251 has 2 divisors, whose sum is σ = 606981252. Its totient is φ = 606981250.

The previous prime is 606981233. The next prime is 606981289. The reversal of 606981251 is 152189606.

It is an a-pointer prime, because the next prime (606981289) can be obtained adding 606981251 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606981251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (606986251) 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, 303490625 + 303490626.

It is an arithmetic number, because the mean of its divisors is an integer number (303490626).

Almost surely, 2^606981251 is an apocalyptic number.

606981251 is a deficient number, since it is larger than the sum of its proper divisors (1).

606981251 is an equidigital number, since it uses as much as digits as its factorization.

606981251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 606981251 is about 24636.9894873542. The cubic root of 606981251 is about 846.6912899370.

The spelling of 606981251 in words is "six hundred six million, nine hundred eighty-one thousand, two hundred fifty-one".