171080157 has 4 divisors (see below), whose sum is σ = 228106880. Its totient is φ = 114053436.

The previous prime is 171080153. The next prime is 171080171. The reversal of 171080157 is 751080171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 751080171 = 3 ⋅250360057.

It is not a de Polignac number, because 171080157 - 2² = 171080153 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 (171080153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28513357 + ... + 28513362.

It is an arithmetic number, because the mean of its divisors is an integer number (57026720).

Almost surely, 2^171080157 is an apocalyptic number.

It is an amenable number.

171080157 is a deficient number, since it is larger than the sum of its proper divisors (57026723).

171080157 is an equidigital number, since it uses as much as digits as its factorization.

171080157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57026722.

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 171080157 is about 13079.7613510339. The cubic root of 171080157 is about 555.1366241034.

The spelling of 171080157 in words is "one hundred seventy-one million, eighty thousand, one hundred fifty-seven".