134718819 has 4 divisors (see below), whose sum is σ = 179625096. Its totient is φ = 89812544.

The previous prime is 134718817. The next prime is 134718823. The reversal of 134718819 is 918817431.

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 134718819 - 2¹ = 134718817 is a prime.

It is a super-2 number, since 2×134718819² = 36298320385509522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134718811) 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, 22453134 + ... + 22453139.

It is an arithmetic number, because the mean of its divisors is an integer number (44906274).

Almost surely, 2^134718819 is an apocalyptic number.

134718819 is a deficient number, since it is larger than the sum of its proper divisors (44906277).

134718819 is an equidigital number, since it uses as much as digits as its factorization.

134718819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44906276.

The product of its digits is 48384, while the sum is 42.

The square root of 134718819 is about 11606.8436277913. The cubic root of 134718819 is about 512.6363788554.

The spelling of 134718819 in words is "one hundred thirty-four million, seven hundred eighteen thousand, eight hundred nineteen".