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129467101 is a prime number
BaseRepresentation
bin1111011011110…
…00001011011101
3100000121121110211
413231320023131
5231120421401
620502532421
73131311051
oct755701335
9300547424
10129467101
1167098605
1237437111
1320a9006a
14132a1c61
15b575951
hex7b782dd

129467101 has 2 divisors, whose sum is σ = 129467102. Its totient is φ = 129467100.

The previous prime is 129467099. The next prime is 129467113. The reversal of 129467101 is 101764921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129367876 + 99225 = 11374^2 + 315^2 .

It is an emirp because it is prime and its reverse (101764921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129467101 - 21 = 129467099 is a prime.

Together with 129467099, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129467141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64733550 + 64733551.

It is an arithmetic number, because the mean of its divisors is an integer number (64733551).

Almost surely, 2129467101 is an apocalyptic number.

It is an amenable number.

129467101 is a deficient number, since it is larger than the sum of its proper divisors (1).

129467101 is an equidigital number, since it uses as much as digits as its factorization.

129467101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 129467101 is about 11378.3610858506. The cubic root of 129467101 is about 505.8865595290.

The spelling of 129467101 in words is "one hundred twenty-nine million, four hundred sixty-seven thousand, one hundred one".