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1298117663 is a prime number
BaseRepresentation
bin100110101011111…
…1011010000011111
310100110122012122222
41031113323100133
510124304231123
6332451055555
744111550413
oct11527732037
93313565588
101298117663
11606832017
123028a15bb
13178c2927b
14c4590d43
1578e6c6c8
hex4d5fb41f

1298117663 has 2 divisors, whose sum is σ = 1298117664. Its totient is φ = 1298117662.

The previous prime is 1298117647. The next prime is 1298117693. The reversal of 1298117663 is 3667118921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1298117663 - 24 = 1298117647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1298117693) 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, 649058831 + 649058832.

It is an arithmetic number, because the mean of its divisors is an integer number (649058832).

Almost surely, 21298117663 is an apocalyptic number.

1298117663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298117663 is an equidigital number, since it uses as much as digits as its factorization.

1298117663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 1298117663 is about 36029.3999811265. The cubic root of 1298117663 is about 1090.8658672801.

The spelling of 1298117663 in words is "one billion, two hundred ninety-eight million, one hundred seventeen thousand, six hundred sixty-three".