134657687 has 2 divisors, whose sum is σ = 134657688. Its totient is φ = 134657686.

The previous prime is 134657671. The next prime is 134657737. The reversal of 134657687 is 786756431.

It is a weak prime.

It is an emirp because it is prime and its reverse (786756431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134657687 - 2⁴ = 134657671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134657657) 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, 67328843 + 67328844.

It is an arithmetic number, because the mean of its divisors is an integer number (67328844).

Almost surely, 2^134657687 is an apocalyptic number.

134657687 is a deficient number, since it is larger than the sum of its proper divisors (1).

134657687 is an equidigital number, since it uses as much as digits as its factorization.

134657687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 134657687 is about 11604.2098826245. The cubic root of 134657687 is about 512.5588266402.

The spelling of 134657687 in words is "one hundred thirty-four million, six hundred fifty-seven thousand, six hundred eighty-seven".