134587987 has 2 divisors, whose sum is σ = 134587988. Its totient is φ = 134587986.

The previous prime is 134587967. The next prime is 134588009. The reversal of 134587987 is 789785431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134587987 - 2²³ = 126199379 is a prime.

It is a super-2 number, since 2×134587987² = 36227852489424338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134587967) 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, 67293993 + 67293994.

It is an arithmetic number, because the mean of its divisors is an integer number (67293994).

Almost surely, 2^134587987 is an apocalyptic number.

134587987 is a deficient number, since it is larger than the sum of its proper divisors (1).

134587987 is an equidigital number, since it uses as much as digits as its factorization.

134587987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 52.

The square root of 134587987 is about 11601.2062734873. The cubic root of 134587987 is about 512.4703763960.

The spelling of 134587987 in words is "one hundred thirty-four million, five hundred eighty-seven thousand, nine hundred eighty-seven".