171150157 has 4 divisors (see below), whose sum is σ = 180158080. Its totient is φ = 162142236.

The previous prime is 171150151. The next prime is 171150229. The reversal of 171150157 is 751051171.

171150157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 171150157 - 2¹⁵ = 171117389 is a prime.

It is a super-2 number, since 2×171150157² = 58584752482249298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171150151) 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, 4503933 + ... + 4503970.

It is an arithmetic number, because the mean of its divisors is an integer number (45039520).

Almost surely, 2^171150157 is an apocalyptic number.

It is an amenable number.

171150157 is a deficient number, since it is larger than the sum of its proper divisors (9007923).

171150157 is an equidigital number, since it uses as much as digits as its factorization.

171150157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9007922.

The product of its (nonzero) digits is 1225, while the sum is 28.

The square root of 171150157 is about 13082.4369671709. The cubic root of 171150157 is about 555.2123279247.

The spelling of 171150157 in words is "one hundred seventy-one million, one hundred fifty thousand, one hundred fifty-seven".