201210447 has 16 divisors (see below), whose sum is σ = 273566720. Its totient is φ = 131545656.

The previous prime is 201210433. The next prime is 201210461. The reversal of 201210447 is 744012102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201210433) and next prime (201210461).

It is not a de Polignac number, because 201210447 - 2¹⁰ = 201209423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201210407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 902178 + ... + 902400.

It is an arithmetic number, because the mean of its divisors is an integer number (17097920).

Almost surely, 2^201210447 is an apocalyptic number.

201210447 is a deficient number, since it is larger than the sum of its proper divisors (72356273).

201210447 is an frugal number, since it uses more digits than its factorization.

201210447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 201210447 is about 14184.8668305346. The cubic root of 201210447 is about 585.9809649919.

Adding to 201210447 its reverse (744012102), we get a palindrome (945222549).

The spelling of 201210447 in words is "two hundred one million, two hundred ten thousand, four hundred forty-seven".