134838407 has 12 divisors (see below), whose sum is σ = 156931488. Its totient is φ = 115368000.

The previous prime is 134838401. The next prime is 134838409. The reversal of 134838407 is 704838431.

It is not a de Polignac number, because 134838407 - 2⁶ = 134838343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134838401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30719 + ... + 34832.

It is an arithmetic number, because the mean of its divisors is an integer number (13077624).

Almost surely, 2^134838407 is an apocalyptic number.

134838407 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

134838407 is a deficient number, since it is larger than the sum of its proper divisors (22093081).

134838407 is a wasteful number, since it uses less digits than its factorization.

134838407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65590 (or 65579 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 134838407 is about 11611.9941009286. The cubic root of 134838407 is about 512.7880206942.

The spelling of 134838407 in words is "one hundred thirty-four million, eight hundred thirty-eight thousand, four hundred seven".