134897519 has 4 divisors (see below), whose sum is σ = 136233240. Its totient is φ = 133561800.

The previous prime is 134897513. The next prime is 134897527. The reversal of 134897519 is 915798431.

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 134897519 - 2⁸ = 134897263 is a prime.

It is a super-2 number, since 2×134897519² = 36394681264710722, 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 (134897513) 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, 667709 + ... + 667910.

It is an arithmetic number, because the mean of its divisors is an integer number (34058310).

Almost surely, 2^134897519 is an apocalyptic number.

134897519 is a deficient number, since it is larger than the sum of its proper divisors (1335721).

134897519 is a wasteful number, since it uses less digits than its factorization.

134897519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335720.

The product of its digits is 272160, while the sum is 47.

The square root of 134897519 is about 11614.5391212910. The cubic root of 134897519 is about 512.8629437020.

The spelling of 134897519 in words is "one hundred thirty-four million, eight hundred ninety-seven thousand, five hundred nineteen".