6442245101 has 2 divisors, whose sum is σ = 6442245102. Its totient is φ = 6442245100.

The previous prime is 6442245097. The next prime is 6442245143. The reversal of 6442245101 is 1015422446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5576355625 + 865889476 = 74675^2 + 29426^2 .

It is a cyclic number.

It is not a de Polignac number, because 6442245101 - 2² = 6442245097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6442245181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221122550 + 3221122551.

It is an arithmetic number, because the mean of its divisors is an integer number (3221122551).

Almost surely, 2^6442245101 is an apocalyptic number.

It is an amenable number.

6442245101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442245101 is an equidigital number, since it uses as much as digits as its factorization.

6442245101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6442245101 is about 80263.5976081312. The cubic root of 6442245101 is about 1860.7116694144.

Adding to 6442245101 its reverse (1015422446), we get a palindrome (7457667547).

The spelling of 6442245101 in words is "six billion, four hundred forty-two million, two hundred forty-five thousand, one hundred one".