134285 has 8 divisors (see below), whose sum is σ = 163296. Its totient is φ = 106000.

The previous prime is 134269. The next prime is 134287. The reversal of 134285 is 582431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134285 - 2⁴ = 134269 is a prime.

It is a super-2 number, since 2×134285² = 36064922450, which contains 22 as substring.

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 134285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410 + ... + 660.

It is an arithmetic number, because the mean of its divisors is an integer number (20412).

2¹³⁴²⁸⁵ is an apocalyptic number.

It is an amenable number.

134285 is a deficient number, since it is larger than the sum of its proper divisors (29011).

134285 is a wasteful number, since it uses less digits than its factorization.

134285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 960, while the sum is 23.

The square root of 134285 is about 366.4491779224. The cubic root of 134285 is about 51.2085526484.

The spelling of 134285 in words is "one hundred thirty-four thousand, two hundred eighty-five".