172067039 has 4 divisors (see below), whose sum is σ = 173841024. Its totient is φ = 170293056.

The previous prime is 172067033. The next prime is 172067041. The reversal of 172067039 is 930760271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172067039 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 (172067033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886847 + ... + 887040.

It is an arithmetic number, because the mean of its divisors is an integer number (43460256).

Almost surely, 2^172067039 is an apocalyptic number.

172067039 is a deficient number, since it is larger than the sum of its proper divisors (1773985).

172067039 is an equidigital number, since it uses as much as digits as its factorization.

172067039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773984.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 172067039 is about 13117.4326375248. The cubic root of 172067039 is about 556.2020199494.

The spelling of 172067039 in words is "one hundred seventy-two million, sixty-seven thousand, thirty-nine".