201820548 has 12 divisors (see below), whose sum is σ = 470914640. Its totient is φ = 67273512.

The previous prime is 201820547. The next prime is 201820609. The reversal of 201820548 is 845028102.

201820548 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (201820547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8409178 + ... + 8409201.

Almost surely, 2^201820548 is an apocalyptic number.

It is an amenable number.

201820548 is an abundant number, since it is smaller than the sum of its proper divisors (269094092).

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

201820548 is a wasteful number, since it uses less digits than its factorization.

201820548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16818386 (or 16818384 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 201820548 is about 14206.3559014970. The cubic root of 201820548 is about 586.5726288380.

The spelling of 201820548 in words is "two hundred one million, eight hundred twenty thousand, five hundred forty-eight".