171133157 has 16 divisors (see below), whose sum is σ = 189423360. Its totient is φ = 153619392.

The previous prime is 171133153. The next prime is 171133199. The reversal of 171133157 is 751331171.

It is a cyclic number.

It is not a de Polignac number, because 171133157 - 2² = 171133153 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 (171133153) 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 15 ways as a sum of consecutive naturals, for example, 104894 + ... + 106512.

It is an arithmetic number, because the mean of its divisors is an integer number (11838960).

Almost surely, 2^171133157 is an apocalyptic number.

It is an amenable number.

171133157 is a deficient number, since it is larger than the sum of its proper divisors (18290203).

171133157 is a wasteful number, since it uses less digits than its factorization.

171133157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852.

The product of its digits is 2205, while the sum is 29.

The square root of 171133157 is about 13081.7872249934. The cubic root of 171133157 is about 555.1939446090.

The spelling of 171133157 in words is "one hundred seventy-one million, one hundred thirty-three thousand, one hundred fifty-seven".