201020984 has 8 divisors (see below), whose sum is σ = 376914360. Its totient is φ = 100510488.

The previous prime is 201020977. The next prime is 201020987. The reversal of 201020984 is 489020102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12563804 + ... + 12563819.

It is an arithmetic number, because the mean of its divisors is an integer number (47114295).

Almost surely, 2^201020984 is an apocalyptic number.

It is an amenable number.

201020984 is a deficient number, since it is larger than the sum of its proper divisors (175893376).

201020984 is a wasteful number, since it uses less digits than its factorization.

201020984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25127629 (or 25127625 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 201020984 is about 14178.1869080641. The cubic root of 201020984 is about 585.7969841928.

The spelling of 201020984 in words is "two hundred one million, twenty thousand, nine hundred eighty-four".