201389147 has 2 divisors, whose sum is σ = 201389148. Its totient is φ = 201389146.

The previous prime is 201389117. The next prime is 201389159. The reversal of 201389147 is 741983102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201389147 - 2¹⁰ = 201388123 is a prime.

It is not a weakly prime, because it can be changed into another prime (201389117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100694573 + 100694574.

It is an arithmetic number, because the mean of its divisors is an integer number (100694574).

Almost surely, 2^201389147 is an apocalyptic number.

201389147 is a deficient number, since it is larger than the sum of its proper divisors (1).

201389147 is an equidigital number, since it uses as much as digits as its factorization.

201389147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 201389147 is about 14191.1643990196. The cubic root of 201389147 is about 586.1543884155.

The spelling of 201389147 in words is "two hundred one million, three hundred eighty-nine thousand, one hundred forty-seven".