201228471 has 24 divisors (see below), whose sum is σ = 301084160. Its totient is φ = 129373200.

The previous prime is 201228431. The next prime is 201228491. The reversal of 201228471 is 174822102.

It is not a de Polignac number, because 201228471 - 2⁶ = 201228407 is a prime.

It is a super-3 number, since 3×201228471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201228431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91260 + ... + 93438.

Almost surely, 2^201228471 is an apocalyptic number.

201228471 is a deficient number, since it is larger than the sum of its proper divisors (99855689).

201228471 is a wasteful number, since it uses less digits than its factorization.

201228471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547 (or 2544 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 201228471 is about 14185.5021412709. The cubic root of 201228471 is about 585.9984614418.

The spelling of 201228471 in words is "two hundred one million, two hundred twenty-eight thousand, four hundred seventy-one".