201100489 has 2 divisors, whose sum is σ = 201100490. Its totient is φ = 201100488.

The previous prime is 201100483. The next prime is 201100507. The reversal of 201100489 is 984001102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172659600 + 28440889 = 13140^2 + 5333^2 .

It is a cyclic number.

It is not a de Polignac number, because 201100489 - 2³ = 201100481 is a prime.

It is not a weakly prime, because it can be changed into another prime (201100481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550244 + 100550245.

It is an arithmetic number, because the mean of its divisors is an integer number (100550245).

Almost surely, 2^201100489 is an apocalyptic number.

It is an amenable number.

201100489 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100489 is an equidigital number, since it uses as much as digits as its factorization.

201100489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 201100489 is about 14180.9904096999. The cubic root of 201100489 is about 585.8742027491.

The spelling of 201100489 in words is "two hundred one million, one hundred thousand, four hundred eighty-nine".