134381709 has 48 divisors (see below), whose sum is σ = 252555264. Its totient is φ = 66765600.

The previous prime is 134381707. The next prime is 134381713. The reversal of 134381709 is 907183431.

It is a happy number.

It is not a de Polignac number, because 134381709 - 2¹ = 134381707 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134381707) 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 47 ways as a sum of consecutive naturals, for example, 11724 + ... + 20154.

It is an arithmetic number, because the mean of its divisors is an integer number (5261568).

Almost surely, 2^134381709 is an apocalyptic number.

It is an amenable number.

134381709 is a deficient number, since it is larger than the sum of its proper divisors (118173555).

134381709 is a wasteful number, since it uses less digits than its factorization.

134381709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478 (or 8475 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 134381709 is about 11592.3124957879. The cubic root of 134381709 is about 512.2084277647.

The spelling of 134381709 in words is "one hundred thirty-four million, three hundred eighty-one thousand, seven hundred nine".