134487 has 16 divisors (see below), whose sum is σ = 211680. Its totient is φ = 84096.

The previous prime is 134471. The next prime is 134489. The reversal of 134487 is 784431.

134487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 134487 - 2⁴ = 134471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 134487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313 + ... + 605.

It is an arithmetic number, because the mean of its divisors is an integer number (13230).

2¹³⁴⁴⁸⁷ is an apocalyptic number.

134487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

134487 is a deficient number, since it is larger than the sum of its proper divisors (77193).

134487 is a wasteful number, since it uses less digits than its factorization.

134487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 313 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 134487 is about 366.7246923784. The cubic root of 134487 is about 51.2342168333.

It can be divided in two parts, 1344 and 87, that added together give a triangular number (1431 = T₅₃).

The spelling of 134487 in words is "one hundred thirty-four thousand, four hundred eighty-seven".