201981027 has 16 divisors (see below), whose sum is σ = 287585280. Its totient is φ = 125815200.

The previous prime is 201981007. The next prime is 201981037. The reversal of 201981027 is 720189102.

201981027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201981027 - 2⁷ = 201980899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201980985 and 201981003.

It is not an unprimeable number, because it can be changed into a prime (201981007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34749 + ... + 40142.

It is an arithmetic number, because the mean of its divisors is an integer number (17974080).

Almost surely, 2^201981027 is an apocalyptic number.

201981027 is a deficient number, since it is larger than the sum of its proper divisors (85604253).

201981027 is a wasteful number, since it uses less digits than its factorization.

201981027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74954.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 201981027 is about 14212.0029200672. The cubic root of 201981027 is about 586.7280600710.

The spelling of 201981027 in words is "two hundred one million, nine hundred eighty-one thousand, twenty-seven".