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128713141 is a prime number
BaseRepresentation
bin1111010110000…
…00000110110101
322222012022020101
413223000012311
5230422310031
620434434101
73122020654
oct753000665
9288168211
10128713141
11667230a7
1237132931
1320887b2b
141314719b
15b477361
hex7ac01b5

128713141 has 2 divisors, whose sum is σ = 128713142. Its totient is φ = 128713140.

The previous prime is 128713099. The next prime is 128713177. The reversal of 128713141 is 141317821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127803025 + 910116 = 11305^2 + 954^2 .

It is a cyclic number.

It is not a de Polignac number, because 128713141 - 213 = 128704949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128743141) 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, 64356570 + 64356571.

It is an arithmetic number, because the mean of its divisors is an integer number (64356571).

Almost surely, 2128713141 is an apocalyptic number.

It is an amenable number.

128713141 is a deficient number, since it is larger than the sum of its proper divisors (1).

128713141 is an equidigital number, since it uses as much as digits as its factorization.

128713141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 28.

The square root of 128713141 is about 11345.1814000482. The cubic root of 128713141 is about 504.9026260643.

The spelling of 128713141 in words is "one hundred twenty-eight million, seven hundred thirteen thousand, one hundred forty-one".