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129801083 is a prime number
BaseRepresentation
bin1111011110010…
…01101101111011
3100001020120121112
413233021231323
5231212113313
620514030535
73134201546
oct757115573
9301216545
10129801083
11672a6525
123757844b
1320b79099
141334b85d
15b5de8a8
hex7bc9b7b

129801083 has 2 divisors, whose sum is σ = 129801084. Its totient is φ = 129801082.

The previous prime is 129801079. The next prime is 129801101. The reversal of 129801083 is 380108921.

It is a weak prime.

It is an emirp because it is prime and its reverse (380108921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129801083 - 22 = 129801079 is a prime.

It is a super-2 number, since 2×1298010832 = 33696642295945778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129801053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64900541 + 64900542.

It is an arithmetic number, because the mean of its divisors is an integer number (64900542).

Almost surely, 2129801083 is an apocalyptic number.

129801083 is a deficient number, since it is larger than the sum of its proper divisors (1).

129801083 is an equidigital number, since it uses as much as digits as its factorization.

129801083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 129801083 is about 11393.0278240685. The cubic root of 129801083 is about 506.3211922844.

The spelling of 129801083 in words is "one hundred twenty-nine million, eight hundred one thousand, eighty-three".