134431859 has 4 divisors (see below), whose sum is σ = 141507240. Its totient is φ = 127356480.

The previous prime is 134431837. The next prime is 134431877. The reversal of 134431859 is 958134431.

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 134431859 - 2²⁴ = 117654643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134431879) 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, 3537662 + ... + 3537699.

It is an arithmetic number, because the mean of its divisors is an integer number (35376810).

Almost surely, 2^134431859 is an apocalyptic number.

134431859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

134431859 is a deficient number, since it is larger than the sum of its proper divisors (7075381).

134431859 is an equidigital number, since it uses as much as digits as its factorization.

134431859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075380.

The product of its digits is 51840, while the sum is 38.

The square root of 134431859 is about 11594.4753654488. The cubic root of 134431859 is about 512.2721369755.

The spelling of 134431859 in words is "one hundred thirty-four million, four hundred thirty-one thousand, eight hundred fifty-nine".