134435839 has 4 divisors (see below), whose sum is σ = 137296224. Its totient is φ = 131575456.

The previous prime is 134435831. The next prime is 134435857. The reversal of 134435839 is 938534431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134435839 - 2³ = 134435831 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134435831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430122 + ... + 1430215.

It is an arithmetic number, because the mean of its divisors is an integer number (34324056).

Almost surely, 2^134435839 is an apocalyptic number.

134435839 is a deficient number, since it is larger than the sum of its proper divisors (2860385).

134435839 is an equidigital number, since it uses as much as digits as its factorization.

134435839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860384.

The product of its digits is 155520, while the sum is 40.

The square root of 134435839 is about 11594.6469976451. The cubic root of 134435839 is about 512.2771923818.

The spelling of 134435839 in words is "one hundred thirty-four million, four hundred thirty-five thousand, eight hundred thirty-nine".