202161244 has 12 divisors (see below), whose sum is σ = 359062984. Its totient is φ = 99571824.

The previous prime is 202161227. The next prime is 202161251. The reversal of 202161244 is 442161202.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 376899 + ... + 377434.

Almost surely, 2^202161244 is an apocalyptic number.

It is an amenable number.

202161244 is a deficient number, since it is larger than the sum of its proper divisors (156901740).

202161244 is a wasteful number, since it uses less digits than its factorization.

202161244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754404 (or 754402 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 202161244 is about 14218.3418161191. The cubic root of 202161244 is about 586.9025103477.

The spelling of 202161244 in words is "two hundred two million, one hundred sixty-one thousand, two hundred forty-four".