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1112054161 is a prime number
BaseRepresentation
bin100001001001000…
…1001100110010001
32212111112012112011
41002102021212101
54234141213121
6302203102521
736362206261
oct10222114621
92774465464
101112054161
115207a8829
12270511a41
1314951151a
14a79997a1
15679677e1
hex42489991

1112054161 has 2 divisors, whose sum is σ = 1112054162. Its totient is φ = 1112054160.

The previous prime is 1112054113. The next prime is 1112054221. The reversal of 1112054161 is 1614502111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1105163536 + 6890625 = 33244^2 + 2625^2 .

It is an emirp because it is prime and its reverse (1614502111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1112054161 - 213 = 1112045969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1112054861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556027080 + 556027081.

It is an arithmetic number, because the mean of its divisors is an integer number (556027081).

Almost surely, 21112054161 is an apocalyptic number.

It is an amenable number.

1112054161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112054161 is an equidigital number, since it uses as much as digits as its factorization.

1112054161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1112054161 is about 33347.4760814068. The cubic root of 1112054161 is about 1036.0371133154.

Adding to 1112054161 its reverse (1614502111), we get a palindrome (2726556272).

The spelling of 1112054161 in words is "one billion, one hundred twelve million, fifty-four thousand, one hundred sixty-one".