134281187 has 2 divisors, whose sum is σ = 134281188. Its totient is φ = 134281186.

The previous prime is 134281127. The next prime is 134281219. The reversal of 134281187 is 781182431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134281187 is a prime.

It is not a weakly prime, because it can be changed into another prime (134281117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67140593 + 67140594.

It is an arithmetic number, because the mean of its divisors is an integer number (67140594).

Almost surely, 2^134281187 is an apocalyptic number.

134281187 is a deficient number, since it is larger than the sum of its proper divisors (1).

134281187 is an equidigital number, since it uses as much as digits as its factorization.

134281187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 35.

The square root of 134281187 is about 11587.9759664922. The cubic root of 134281187 is about 512.0806795773.

The spelling of 134281187 in words is "one hundred thirty-four million, two hundred eighty-one thousand, one hundred eighty-seven".