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128954107 is a prime number
BaseRepresentation
bin1111010111110…
…10111011111011
322222122112210001
413223322323323
5231003012412
620443533431
73124043332
oct753727373
9288575701
10128954107
1166878147
123722a277
1320940709
14131aad19
15b4c3957
hex7afaefb

128954107 has 2 divisors, whose sum is σ = 128954108. Its totient is φ = 128954106.

The previous prime is 128954093. The next prime is 128954171. The reversal of 128954107 is 701459821.

It is a weak prime.

It is an emirp because it is prime and its reverse (701459821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128954107 - 215 = 128921339 is a prime.

It is not a weakly prime, because it can be changed into another prime (128954207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64477053 + 64477054.

It is an arithmetic number, because the mean of its divisors is an integer number (64477054).

Almost surely, 2128954107 is an apocalyptic number.

128954107 is a deficient number, since it is larger than the sum of its proper divisors (1).

128954107 is an equidigital number, since it uses as much as digits as its factorization.

128954107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 128954107 is about 11355.7961852087. The cubic root of 128954107 is about 505.2175084993.

The spelling of 128954107 in words is "one hundred twenty-eight million, nine hundred fifty-four thousand, one hundred seven".