202152171 has 16 divisors (see below), whose sum is σ = 293267744. Its totient is φ = 123116544.

The previous prime is 202152169. The next prime is 202152173. The reversal of 202152171 is 171251202.

It is an interprime number because it is at equal distance from previous prime (202152169) and next prime (202152173).

It is not a de Polignac number, because 202152171 - 2¹ = 202152169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202152173) 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, 22936 + ... + 30501.

It is an arithmetic number, because the mean of its divisors is an integer number (18329234).

Almost surely, 2^202152171 is an apocalyptic number.

202152171 is a deficient number, since it is larger than the sum of its proper divisors (91115573).

202152171 is a wasteful number, since it uses less digits than its factorization.

202152171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53550.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 202152171 is about 14218.0227528303. The cubic root of 202152171 is about 586.8937301515.

The spelling of 202152171 in words is "two hundred two million, one hundred fifty-two thousand, one hundred seventy-one".