134685487 has 2 divisors, whose sum is σ = 134685488. Its totient is φ = 134685486.

The previous prime is 134685479. The next prime is 134685497. The reversal of 134685487 is 784586431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134685487 - 2³ = 134685479 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 (134685427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67342743 + 67342744.

It is an arithmetic number, because the mean of its divisors is an integer number (67342744).

Almost surely, 2^134685487 is an apocalyptic number.

134685487 is a deficient number, since it is larger than the sum of its proper divisors (1).

134685487 is an equidigital number, since it uses as much as digits as its factorization.

134685487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 46.

The square root of 134685487 is about 11605.4076619479. The cubic root of 134685487 is about 512.5940967022.

The spelling of 134685487 in words is "one hundred thirty-four million, six hundred eighty-five thousand, four hundred eighty-seven".