134681285 has 4 divisors (see below), whose sum is σ = 161617548. Its totient is φ = 107745024.

The previous prime is 134681257. The next prime is 134681317. The reversal of 134681285 is 582186431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96216481 + 38464804 = 9809^2 + 6202^2 .

It is a cyclic number.

It is not a de Polignac number, because 134681285 - 2¹⁸ = 134419141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13468124 + ... + 13468133.

It is an arithmetic number, because the mean of its divisors is an integer number (40404387).

Almost surely, 2^134681285 is an apocalyptic number.

It is an amenable number.

134681285 is a deficient number, since it is larger than the sum of its proper divisors (26936263).

134681285 is an equidigital number, since it uses as much as digits as its factorization.

134681285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26936262.

The product of its digits is 46080, while the sum is 38.

The square root of 134681285 is about 11605.2266242413. The cubic root of 134681285 is about 512.5887659057.

The spelling of 134681285 in words is "one hundred thirty-four million, six hundred eighty-one thousand, two hundred eighty-five".