Search a number
1222622563 is a prime number
BaseRepresentation
bin100100011011111…
…1011110101100011
310011012120122212011
41020313323311203
510000442410223
6321153013351
742204056161
oct11067736543
93135518764
101222622563
11578158478
122a1554257
131663b5506
14b853c231
157250880d
hex48dfbd63

1222622563 has 2 divisors, whose sum is σ = 1222622564. Its totient is φ = 1222622562.

The previous prime is 1222622551. The next prime is 1222622567. The reversal of 1222622563 is 3652262221.

Adding to 1222622563 its reverse (3652262221), we get a palindrome (4874884784).

It is a strong prime.

It is an emirp because it is prime and its reverse (3652262221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222622563 - 225 = 1189068131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222622567) 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, 611311281 + 611311282.

It is an arithmetic number, because the mean of its divisors is an integer number (611311282).

Almost surely, 21222622563 is an apocalyptic number.

1222622563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222622563 is an equidigital number, since it uses as much as digits as its factorization.

1222622563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 1222622563 is about 34966.0201195389. The cubic root of 1222622563 is about 1069.2948342359.

The spelling of 1222622563 in words is "one billion, two hundred twenty-two million, six hundred twenty-two thousand, five hundred sixty-three".