172388001 has 8 divisors (see below), whose sum is σ = 230052960. Its totient is φ = 114824192.

The previous prime is 172387997. The next prime is 172388003. The reversal of 172388001 is 100883271.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 172388001 - 2² = 172387997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172388001.

It is not an unprimeable number, because it can be changed into a prime (172388003) 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 7 ways as a sum of consecutive naturals, for example, 21216 + ... + 28193.

It is an arithmetic number, because the mean of its divisors is an integer number (28756620).

Almost surely, 2^172388001 is an apocalyptic number.

It is an amenable number.

172388001 is a deficient number, since it is larger than the sum of its proper divisors (57664959).

172388001 is a wasteful number, since it uses less digits than its factorization.

172388001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50575.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 172388001 is about 13129.6611152002. The cubic root of 172388001 is about 556.5476387834.

The spelling of 172388001 in words is "one hundred seventy-two million, three hundred eighty-eight thousand, one".