171601397 has 8 divisors (see below), whose sum is σ = 187474080. Its totient is φ = 155774160.

The previous prime is 171601387. The next prime is 171601427. The reversal of 171601397 is 793106171.

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 171601397 - 2¹⁴ = 171585013 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 (171601307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3203 + ... + 18800.

It is an arithmetic number, because the mean of its divisors is an integer number (23434260).

Almost surely, 2^171601397 is an apocalyptic number.

It is an amenable number.

171601397 is a deficient number, since it is larger than the sum of its proper divisors (15872683).

171601397 is a wasteful number, since it uses less digits than its factorization.

171601397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22723.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 171601397 is about 13099.6716371060. The cubic root of 171601397 is about 555.6998416539.

The spelling of 171601397 in words is "one hundred seventy-one million, six hundred one thousand, three hundred ninety-seven".