202155171 has 16 divisors (see below), whose sum is σ = 273321984. Its totient is φ = 132892704.

The previous prime is 202155167. The next prime is 202155221. The reversal of 202155171 is 171551202.

It is not a de Polignac number, because 202155171 - 2² = 202155167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202155101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64380 + ... + 67446.

It is an arithmetic number, because the mean of its divisors is an integer number (17082624).

Almost surely, 2^202155171 is an apocalyptic number.

202155171 is a deficient number, since it is larger than the sum of its proper divisors (71166813).

202155171 is a wasteful number, since it uses less digits than its factorization.

202155171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 202155171 is about 14218.1282523404. The cubic root of 202155171 is about 586.8966333646.

The spelling of 202155171 in words is "two hundred two million, one hundred fifty-five thousand, one hundred seventy-one".