8220635147 has 2 divisors, whose sum is σ = 8220635148. Its totient is φ = 8220635146.

The previous prime is 8220635117. The next prime is 8220635153. The reversal of 8220635147 is 7415360228.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8220635147 - 2¹⁸ = 8220373003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8220635147.

It is not a weakly prime, because it can be changed into another prime (8220635117) 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, 4110317573 + 4110317574.

It is an arithmetic number, because the mean of its divisors is an integer number (4110317574).

Almost surely, 2^8220635147 is an apocalyptic number.

8220635147 is a deficient number, since it is larger than the sum of its proper divisors (1).

8220635147 is an equidigital number, since it uses as much as digits as its factorization.

8220635147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 8220635147 is about 90667.7183290723. The cubic root of 8220635147 is about 2018.2197780732.

The spelling of 8220635147 in words is "eight billion, two hundred twenty million, six hundred thirty-five thousand, one hundred forty-seven".