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8474161 is a prime number
BaseRepresentation
bin100000010100…
…111000110001
3120221112100211
4200110320301
54132133121
6501344121
7132013003
oct40247061
916845324
108474161
114868843
122a08041
1319a91c7
1411a8373
15b25ce1
hex814e31

8474161 has 2 divisors, whose sum is σ = 8474162. Its totient is φ = 8474160.

The previous prime is 8474159. The next prime is 8474173. The reversal of 8474161 is 1614748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6471936 + 2002225 = 2544^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 8474161 - 21 = 8474159 is a prime.

It is a super-2 number, since 2×84741612 = 143622809307842, which contains 22 as substring.

Together with 8474159, it forms a pair of twin primes.

It is a Chen prime.

8474161 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8474461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4237080 + 4237081.

It is an arithmetic number, because the mean of its divisors is an integer number (4237081).

Almost surely, 28474161 is an apocalyptic number.

It is an amenable number.

8474161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8474161 is an equidigital number, since it uses as much as digits as its factorization.

8474161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 8474161 is about 2911.0412226556. The cubic root of 8474161 is about 203.8757493410.

The spelling of 8474161 in words is "eight million, four hundred seventy-four thousand, one hundred sixty-one".