134919899 has 4 divisors (see below), whose sum is σ = 134967720. Its totient is φ = 134872080.

The previous prime is 134919881. The next prime is 134919907. The reversal of 134919899 is 998919431.

134919899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998919431 = 2213 ⋅451387.

It is a cyclic number.

It is not a de Polignac number, because 134919899 - 2²⁰ = 133871323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134919899.

It is not an unprimeable number, because it can be changed into a prime (134919199) 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, 19394 + ... + 25415.

It is an arithmetic number, because the mean of its divisors is an integer number (33741930).

Almost surely, 2^134919899 is an apocalyptic number.

134919899 is a deficient number, since it is larger than the sum of its proper divisors (47821).

134919899 is an equidigital number, since it uses as much as digits as its factorization.

134919899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47820.

The product of its digits is 629856, while the sum is 53.

The square root of 134919899 is about 11615.5025289481. The cubic root of 134919899 is about 512.8913040902.

The spelling of 134919899 in words is "one hundred thirty-four million, nine hundred nineteen thousand, eight hundred ninety-nine".