6147633221 has 2 divisors, whose sum is σ = 6147633222. Its totient is φ = 6147633220.

The previous prime is 6147633209. The next prime is 6147633227. The reversal of 6147633221 is 1223367416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6098829025 + 48804196 = 78095^2 + 6986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6147633221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6147633227) 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, 3073816610 + 3073816611.

It is an arithmetic number, because the mean of its divisors is an integer number (3073816611).

Almost surely, 2^6147633221 is an apocalyptic number.

It is an amenable number.

6147633221 is a deficient number, since it is larger than the sum of its proper divisors (1).

6147633221 is an equidigital number, since it uses as much as digits as its factorization.

6147633221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 6147633221 is about 78406.8442229376. The cubic root of 6147633221 is about 1831.9037412358.

The spelling of 6147633221 in words is "six billion, one hundred forty-seven million, six hundred thirty-three thousand, two hundred twenty-one".