134398519 has 4 divisors (see below), whose sum is σ = 136676520. Its totient is φ = 132120520.

The previous prime is 134398489. The next prime is 134398529. The reversal of 134398519 is 915893431.

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 134398519 - 2⁹ = 134398007 is a prime.

It is a super-2 number, since 2×134398519² = 36125923818786722, 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 (134398529) 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, 1138912 + ... + 1139029.

It is an arithmetic number, because the mean of its divisors is an integer number (34169130).

Almost surely, 2^134398519 is an apocalyptic number.

134398519 is a deficient number, since it is larger than the sum of its proper divisors (2278001).

134398519 is an equidigital number, since it uses as much as digits as its factorization.

134398519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278000.

The product of its digits is 116640, while the sum is 43.

The square root of 134398519 is about 11593.0375225823. The cubic root of 134398519 is about 512.2297845022.

The spelling of 134398519 in words is "one hundred thirty-four million, three hundred ninety-eight thousand, five hundred nineteen".