134803905 has 8 divisors (see below), whose sum is σ = 215686272. Its totient is φ = 71895408.

The previous prime is 134803873. The next prime is 134803909. The reversal of 134803905 is 509308431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134803905 - 2⁵ = 134803873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134803909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4493449 + ... + 4493478.

It is an arithmetic number, because the mean of its divisors is an integer number (26960784).

Almost surely, 2^134803905 is an apocalyptic number.

134803905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134803905 is a deficient number, since it is larger than the sum of its proper divisors (80882367).

134803905 is an equidigital number, since it uses as much as digits as its factorization.

134803905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8986935.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 134803905 is about 11610.5083868020. The cubic root of 134803905 is about 512.7442801361.

The spelling of 134803905 in words is "one hundred thirty-four million, eight hundred three thousand, nine hundred five".