135715947 has 8 divisors (see below), whose sum is σ = 191599056. Its totient is φ = 85155072.

The previous prime is 135715927. The next prime is 135715991. The reversal of 135715947 is 749517531.

135715947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 135715947 - 2⁷ = 135715819 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 135715899 and 135715908.

It is not an unprimeable number, because it can be changed into a prime (135715927) 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, 1330498 + ... + 1330599.

It is an arithmetic number, because the mean of its divisors is an integer number (23949882).

Almost surely, 2^135715947 is an apocalyptic number.

135715947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

135715947 is a deficient number, since it is larger than the sum of its proper divisors (55883109).

135715947 is a wasteful number, since it uses less digits than its factorization.

135715947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661117.

The product of its digits is 132300, while the sum is 42.

The square root of 135715947 is about 11649.7187519699. The cubic root of 135715947 is about 513.8980390447.

The spelling of 135715947 in words is "one hundred thirty-five million, seven hundred fifteen thousand, nine hundred forty-seven".