245122505651 has 2 divisors, whose sum is σ = 245122505652. Its totient is φ = 245122505650.

The previous prime is 245122505611. The next prime is 245122505653. The reversal of 245122505651 is 156505221542.

245122505651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245122505651 is a prime.

Together with 245122505653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245122505653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122561252825 + 122561252826.

It is an arithmetic number, because the mean of its divisors is an integer number (122561252826).

Almost surely, 2^245122505651 is an apocalyptic number.

245122505651 is a deficient number, since it is larger than the sum of its proper divisors (1).

245122505651 is an equidigital number, since it uses as much as digits as its factorization.

245122505651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 245122505651 in words is "two hundred forty-five billion, one hundred twenty-two million, five hundred five thousand, six hundred fifty-one".