134871785 has 16 divisors (see below), whose sum is σ = 171279360. Its totient is φ = 101669760.

The previous prime is 134871773. The next prime is 134871787. The reversal of 134871785 is 587178431.

134871785 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 134871785 - 2¹⁸ = 134609641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134871787) 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, 14429 + ... + 21861.

It is an arithmetic number, because the mean of its divisors is an integer number (10704960).

Almost surely, 2^134871785 is an apocalyptic number.

It is an amenable number.

134871785 is a deficient number, since it is larger than the sum of its proper divisors (36407575).

134871785 is a wasteful number, since it uses less digits than its factorization.

134871785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648.

The product of its digits is 188160, while the sum is 44.

The square root of 134871785 is about 11613.4312328442. The cubic root of 134871785 is about 512.8303291799.

The spelling of 134871785 in words is "one hundred thirty-four million, eight hundred seventy-one thousand, seven hundred eighty-five".