202131066 has 32 divisors (see below), whose sum is σ = 416304000. Its totient is φ = 65387520.

The previous prime is 202131049. The next prime is 202131079. The reversal of 202131066 is 660131202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46890 + ... + 51018.

It is an arithmetic number, because the mean of its divisors is an integer number (13009500).

Almost surely, 2^202131066 is an apocalyptic number.

202131066 is an abundant number, since it is smaller than the sum of its proper divisors (214172934).

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

202131066 is a wasteful number, since it uses less digits than its factorization.

202131066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 202131066 is about 14217.2805416507. The cubic root of 202131066 is about 586.8733052357.

Adding to 202131066 its reverse (660131202), we get a palindrome (862262268).

The spelling of 202131066 in words is "two hundred two million, one hundred thirty-one thousand, sixty-six".