202170132 has 36 divisors (see below), whose sum is σ = 512497440. Its totient is φ = 67198032.

The previous prime is 202170121. The next prime is 202170173. The reversal of 202170132 is 231071202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5103 + ... + 20745.

It is an arithmetic number, because the mean of its divisors is an integer number (14236040).

Almost surely, 2^202170132 is an apocalyptic number.

It is an amenable number.

202170132 is an abundant number, since it is smaller than the sum of its proper divisors (310327308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202170132 is a wasteful number, since it uses less digits than its factorization.

202170132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16012 (or 16007 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 202170132 is about 14218.6543667114. The cubic root of 202170132 is about 586.9111112595.

The spelling of 202170132 in words is "two hundred two million, one hundred seventy thousand, one hundred thirty-two".