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BaseRepresentation
bin100000011111011111
320202120011
4200133133
513224322
62504051
71063003
oct403737
9222504
10133087
1190a99
1265027
1348766
1436703
1529677
hex207df

133087 has 2 divisors, whose sum is σ = 133088. Its totient is φ = 133086.

The previous prime is 133073. The next prime is 133097. The reversal of 133087 is 780331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-133087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133097) 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, 66543 + 66544.

It is an arithmetic number, because the mean of its divisors is an integer number (66544).

2133087 is an apocalyptic number.

133087 is a deficient number, since it is larger than the sum of its proper divisors (1).

133087 is an equidigital number, since it uses as much as digits as its factorization.

133087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 133087 is about 364.8109099246. The cubic root of 133087 is about 51.0558148386.

The spelling of 133087 in words is "one hundred thirty-three thousand, eighty-seven".