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129188063 is a prime number
BaseRepresentation
bin1111011001101…
…00000011011111
3100000002102201002
413230310003133
5231033004223
620452540515
73126036404
oct754640337
9300072632
10129188063
1166a179a4
123732173b
13209c3054
141322c2ab
15b51ce28
hex7b340df

129188063 has 2 divisors, whose sum is σ = 129188064. Its totient is φ = 129188062.

The previous prime is 129188047. The next prime is 129188093. The reversal of 129188063 is 360881921.

It is a weak prime.

It is an emirp because it is prime and its reverse (360881921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129188063 - 24 = 129188047 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 (129188023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64594031 + 64594032.

It is an arithmetic number, because the mean of its divisors is an integer number (64594032).

Almost surely, 2129188063 is an apocalyptic number.

129188063 is a deficient number, since it is larger than the sum of its proper divisors (1).

129188063 is an equidigital number, since it uses as much as digits as its factorization.

129188063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 129188063 is about 11366.0926883428. The cubic root of 129188063 is about 505.5228555234.

The spelling of 129188063 in words is "one hundred twenty-nine million, one hundred eighty-eight thousand, sixty-three".