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8214149 is a prime number
BaseRepresentation
bin11111010101011010000101
3120110022200202
4133111122011
54100323044
6452020245
7126550646
oct37253205
916408622
108214149
114700459
122901685
131917a58
14113b6cd
15ac3c4e
hex7d5685

8214149 has 2 divisors, whose sum is σ = 8214150. Its totient is φ = 8214148.

The previous prime is 8214127. The next prime is 8214169. The reversal of 8214149 is 9414128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6477025 + 1737124 = 2545^2 + 1318^2 .

It is a cyclic number.

It is not a de Polignac number, because 8214149 - 28 = 8213893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8214169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4107074 + 4107075.

It is an arithmetic number, because the mean of its divisors is an integer number (4107075).

Almost surely, 28214149 is an apocalyptic number.

It is an amenable number.

8214149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8214149 is an equidigital number, since it uses as much as digits as its factorization.

8214149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 8214149 is about 2866.0336704233. The cubic root of 8214149 is about 201.7688841219.

The spelling of 8214149 in words is "eight million, two hundred fourteen thousand, one hundred forty-nine".