135726791 has 8 divisors (see below), whose sum is σ = 140959104. Its totient is φ = 130588920.

The previous prime is 135726781. The next prime is 135726797. The reversal of 135726791 is 197627531.

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 135726791 - 2¹⁰ = 135725767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135726797) 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, 20675 + ... + 26436.

It is an arithmetic number, because the mean of its divisors is an integer number (17619888).

Almost surely, 2^135726791 is an apocalyptic number.

135726791 is a deficient number, since it is larger than the sum of its proper divisors (5232313).

135726791 is an equidigital number, since it uses as much as digits as its factorization.

135726791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47221.

The product of its digits is 79380, while the sum is 41.

The square root of 135726791 is about 11650.1841616345. The cubic root of 135726791 is about 513.9117258714.

The spelling of 135726791 in words is "one hundred thirty-five million, seven hundred twenty-six thousand, seven hundred ninety-one".