135308719 has 8 divisors (see below), whose sum is σ = 166533920. Its totient is φ = 107057376.

The previous prime is 135308713. The next prime is 135308743. The reversal of 135308719 is 917803531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135308719 - 2⁵ = 135308687 is a prime.

It is a super-2 number, since 2×135308719² = 36616898874841922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135308713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743364 + ... + 743545.

It is an arithmetic number, because the mean of its divisors is an integer number (20816740).

Almost surely, 2^135308719 is an apocalyptic number.

135308719 is a deficient number, since it is larger than the sum of its proper divisors (31225201).

135308719 is a wasteful number, since it uses less digits than its factorization.

135308719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486929.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 135308719 is about 11632.2276026563. The cubic root of 135308719 is about 513.3835248706.

The spelling of 135308719 in words is "one hundred thirty-five million, three hundred eight thousand, seven hundred nineteen".