245606651 has 2 divisors, whose sum is σ = 245606652. Its totient is φ = 245606650.

The previous prime is 245606617. The next prime is 245606659. The reversal of 245606651 is 156606542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245606651 - 2⁶ = 245606587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245606659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122803325 + 122803326.

It is an arithmetic number, because the mean of its divisors is an integer number (122803326).

Almost surely, 2^245606651 is an apocalyptic number.

245606651 is a deficient number, since it is larger than the sum of its proper divisors (1).

245606651 is an equidigital number, since it uses as much as digits as its factorization.

245606651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 245606651 is about 15671.8426166166. The cubic root of 245606651 is about 626.2485131365.

The spelling of 245606651 in words is "two hundred forty-five million, six hundred six thousand, six hundred fifty-one".