135397171 has 16 divisors (see below), whose sum is σ = 171150784. Its totient is φ = 104229504.

The previous prime is 135397169. The next prime is 135397183. The reversal of 135397171 is 171793531.

It is a cyclic number.

It is not a de Polignac number, because 135397171 - 2¹ = 135397169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 135397171.

It is not an unprimeable number, because it can be changed into a prime (135397121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16740 + ... + 23473.

It is an arithmetic number, because the mean of its divisors is an integer number (10696924).

Almost surely, 2^135397171 is an apocalyptic number.

135397171 is a deficient number, since it is larger than the sum of its proper divisors (35753613).

135397171 is a wasteful number, since it uses less digits than its factorization.

135397171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40270.

The product of its digits is 19845, while the sum is 37.

The square root of 135397171 is about 11636.0290047765. The cubic root of 135397171 is about 513.4953676467.

The spelling of 135397171 in words is "one hundred thirty-five million, three hundred ninety-seven thousand, one hundred seventy-one".