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8253149 is a prime number
BaseRepresentation
bin11111011110111011011101
3120112022012012
4133132323131
54103100044
6452521005
7130102442
oct37367335
916468165
108253149
114727793
122920165
13192c728
14114b9c9
15ad059e
hex7deedd

8253149 has 2 divisors, whose sum is σ = 8253150. Its totient is φ = 8253148.

The previous prime is 8253101. The next prime is 8253173. The reversal of 8253149 is 9413528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 1545049 = 2590^2 + 1243^2 .

It is a cyclic number.

It is not a de Polignac number, because 8253149 - 212 = 8249053 is a prime.

It is a super-2 number, since 2×82531492 = 136228936832402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8253199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126574 + 4126575.

It is an arithmetic number, because the mean of its divisors is an integer number (4126575).

Almost surely, 28253149 is an apocalyptic number.

It is an amenable number.

8253149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8253149 is an equidigital number, since it uses as much as digits as its factorization.

8253149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 8253149 is about 2872.8294415088. The cubic root of 8253149 is about 202.0877065786.

The spelling of 8253149 in words is "eight million, two hundred fifty-three thousand, one hundred forty-nine".