134548987 has 4 divisors (see below), whose sum is σ = 135739800. Its totient is φ = 133358176.

The previous prime is 134548961. The next prime is 134548993. The reversal of 134548987 is 789845431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789845431 = 107 ⋅7381733.

It is a cyclic number.

It is not a de Polignac number, because 134548987 - 2¹¹ = 134546939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134548987.

It is not an unprimeable number, because it can be changed into a prime (134548957) 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 in 3 ways as a sum of consecutive naturals, for example, 595237 + ... + 595462.

It is an arithmetic number, because the mean of its divisors is an integer number (33934950).

Almost surely, 2^134548987 is an apocalyptic number.

134548987 is a deficient number, since it is larger than the sum of its proper divisors (1190813).

134548987 is a wasteful number, since it uses less digits than its factorization.

134548987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190812.

The product of its digits is 967680, while the sum is 49.

The square root of 134548987 is about 11599.5252920109. The cubic root of 134548987 is about 512.4208715431.

The spelling of 134548987 in words is "one hundred thirty-four million, five hundred forty-eight thousand, nine hundred eighty-seven".