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87148253 is a prime number
BaseRepresentation
bin1010011000111…
…00011011011101
320001222120221002
411030130123131
5134302221003
612351520045
72105514353
oct514343335
9201876832
1087148253
1145213855
1225229025
1315093c1a
14b8077d3
1579b6a88
hex531c6dd

87148253 has 2 divisors, whose sum is σ = 87148254. Its totient is φ = 87148252.

The previous prime is 87148241. The next prime is 87148261. The reversal of 87148253 is 35284178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85137529 + 2010724 = 9227^2 + 1418^2 .

It is a cyclic number.

It is not a de Polignac number, because 87148253 - 26 = 87148189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87148213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43574126 + 43574127.

It is an arithmetic number, because the mean of its divisors is an integer number (43574127).

Almost surely, 287148253 is an apocalyptic number.

It is an amenable number.

87148253 is a deficient number, since it is larger than the sum of its proper divisors (1).

87148253 is an equidigital number, since it uses as much as digits as its factorization.

87148253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 87148253 is about 9335.3228653325. The cubic root of 87148253 is about 443.3563113322.

The spelling of 87148253 in words is "eighty-seven million, one hundred forty-eight thousand, two hundred fifty-three".