134785665 has 48 divisors (see below), whose sum is σ = 267945600. Its totient is φ = 61399296.

The previous prime is 134785657. The next prime is 134785687. The reversal of 134785665 is 566587431.

134785665 is a `hidden beast` number, since 13 + 4 + 78 + 566 + 5 = 666.

It is not a de Polignac number, because 134785665 - 2³ = 134785657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 134785665.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118821 + ... + 119949.

It is an arithmetic number, because the mean of its divisors is an integer number (5582200).

Almost surely, 2^134785665 is an apocalyptic number.

134785665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134785665 is a deficient number, since it is larger than the sum of its proper divisors (133159935).

134785665 is a wasteful number, since it uses less digits than its factorization.

134785665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1523 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 134785665 is about 11609.7228649094. The cubic root of 134785665 is about 512.7211530180.

It can be divided in two parts, 1347856 and 65, that added together give a square (1347921 = 1161²).

The spelling of 134785665 in words is "one hundred thirty-four million, seven hundred eighty-five thousand, six hundred sixty-five".