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134808431 is a prime number
BaseRepresentation
bin10000000100100…
…00001101101111
3100101122222101212
420002100031233
5234002332211
621213225035
73224565332
oct1002201557
9311588355
10134808431
116a10662a
123919217b
1321c10304
1413c92619
15bc7d38b
hex809036f

134808431 has 2 divisors, whose sum is σ = 134808432. Its totient is φ = 134808430.

The previous prime is 134808413. The next prime is 134808461.

134808431 is nontrivially palindromic in base 10.

Together with previous prime (134808413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-134808431 is a prime.

It is a super-2 number, since 2×1348084312 = 36346626137363522, which contains 22 as substring.

It is a Chen prime.

It is equal to p7635164 and since 134808431 and 7635164 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134808461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67404215 + 67404216.

It is an arithmetic number, because the mean of its divisors is an integer number (67404216).

Almost surely, 2134808431 is an apocalyptic number.

134808431 is a deficient number, since it is larger than the sum of its proper divisors (1).

134808431 is an equidigital number, since it uses as much as digits as its factorization.

134808431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 134808431 is about 11610.7032948052. The cubic root of 134808431 is about 512.7500184829.

The spelling of 134808431 in words is "one hundred thirty-four million, eight hundred eight thousand, four hundred thirty-one".