135394571 has 8 divisors (see below), whose sum is σ = 145922784. Its totient is φ = 124882560.

The previous prime is 135394561. The next prime is 135394601. The reversal of 135394571 is 175493531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135394571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135394531) 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, 17651 + ... + 24131.

It is an arithmetic number, because the mean of its divisors is an integer number (18240348).

Almost surely, 2^135394571 is an apocalyptic number.

135394571 is a deficient number, since it is larger than the sum of its proper divisors (10528213).

135394571 is a wasteful number, since it uses less digits than its factorization.

135394571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8101.

The product of its digits is 56700, while the sum is 38.

The square root of 135394571 is about 11635.9172822773. The cubic root of 135394571 is about 513.4920807821.

The spelling of 135394571 in words is "one hundred thirty-five million, three hundred ninety-four thousand, five hundred seventy-one".