201243304 has 8 divisors (see below), whose sum is σ = 377331210. Its totient is φ = 100621648.

The previous prime is 201243283. The next prime is 201243313. The reversal of 201243304 is 403342102.

It can be written as a sum of positive squares in only one way, i.e., 178222500 + 23020804 = 13350^2 + 4798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12577699 + ... + 12577714.

Almost surely, 2^201243304 is an apocalyptic number.

It is an amenable number.

201243304 is a deficient number, since it is larger than the sum of its proper divisors (176087906).

201243304 is a wasteful number, since it uses less digits than its factorization.

201243304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25155419 (or 25155415 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 201243304 is about 14186.0249541582. The cubic root of 201243304 is about 586.0128595065.

Adding to 201243304 its reverse (403342102), we get a palindrome (604585406).

The spelling of 201243304 in words is "two hundred one million, two hundred forty-three thousand, three hundred four".