134889719 has 4 divisors (see below), whose sum is σ = 135323760. Its totient is φ = 134455680.

The previous prime is 134889709. The next prime is 134889737. The reversal of 134889719 is 917988431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134889719 is a prime.

It is a super-2 number, since 2×134889719² = 36390472583797922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134889709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216554 + ... + 217175.

It is an arithmetic number, because the mean of its divisors is an integer number (33830940).

Almost surely, 2^134889719 is an apocalyptic number.

134889719 is a deficient number, since it is larger than the sum of its proper divisors (434041).

134889719 is an equidigital number, since it uses as much as digits as its factorization.

134889719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434040.

The product of its digits is 435456, while the sum is 50.

The square root of 134889719 is about 11614.2033304054. The cubic root of 134889719 is about 512.8530586473.

The spelling of 134889719 in words is "one hundred thirty-four million, eight hundred eighty-nine thousand, seven hundred nineteen".