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2215163149 is a prime number
BaseRepresentation
bin1000010000001000…
…1011010100001101
312201101012221120121
42010002023110031
514014040210044
61003450344541
7105615401413
oct20402132415
95641187517
102215163149
11a37446951
12519a2b151
13293c10334
141702a72b3
15ce714984
hex8408b50d

2215163149 has 2 divisors, whose sum is σ = 2215163150. Its totient is φ = 2215163148.

The previous prime is 2215163131. The next prime is 2215163191. The reversal of 2215163149 is 9413615122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2145357124 + 69806025 = 46318^2 + 8355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215163149 - 27 = 2215163021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215163749) 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, 1107581574 + 1107581575.

It is an arithmetic number, because the mean of its divisors is an integer number (1107581575).

Almost surely, 22215163149 is an apocalyptic number.

It is an amenable number.

2215163149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215163149 is an equidigital number, since it uses as much as digits as its factorization.

2215163149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 2215163149 is about 47065.5197464131. The cubic root of 2215163149 is about 1303.5726478364.

The spelling of 2215163149 in words is "two billion, two hundred fifteen million, one hundred sixty-three thousand, one hundred forty-nine".