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8144161 is a prime number
BaseRepresentation
bin11111000100010100100001
3120022202200121
4133010110201
54041103121
6450320241
7126136624
oct37042441
916282617
108144161
114662913
122889081
1318c1c3c
14111ddbb
15aad141
hex7c4521

8144161 has 2 divisors, whose sum is σ = 8144162. Its totient is φ = 8144160.

The previous prime is 8144137. The next prime is 8144167. The reversal of 8144161 is 1614418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8014561 + 129600 = 2831^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 8144161 - 215 = 8111393 is a prime.

It is a zygodrome in base 14.

It is not a weakly prime, because it can be changed into another prime (8144167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4072080 + 4072081.

It is an arithmetic number, because the mean of its divisors is an integer number (4072081).

Almost surely, 28144161 is an apocalyptic number.

It is an amenable number.

8144161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8144161 is an equidigital number, since it uses as much as digits as its factorization.

8144161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 25.

The square root of 8144161 is about 2853.7976452440. The cubic root of 8144161 is about 201.1941969429.

Adding to 8144161 its reverse (1614418), we get a palindrome (9758579).

The spelling of 8144161 in words is "eight million, one hundred forty-four thousand, one hundred sixty-one".