172135065 has 8 divisors (see below), whose sum is σ = 275416128. Its totient is φ = 91805360.

The previous prime is 172135057. The next prime is 172135069. The reversal of 172135065 is 560531271.

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

It is not a de Polignac number, because 172135065 - 2³ = 172135057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172135069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5737821 + ... + 5737850.

It is an arithmetic number, because the mean of its divisors is an integer number (34427016).

Almost surely, 2^172135065 is an apocalyptic number.

172135065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172135065 is a deficient number, since it is larger than the sum of its proper divisors (103281063).

172135065 is a wasteful number, since it uses less digits than its factorization.

172135065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475679.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 172135065 is about 13120.0253429633. The cubic root of 172135065 is about 556.2753076900.

The spelling of 172135065 in words is "one hundred seventy-two million, one hundred thirty-five thousand, sixty-five".