201617253 has 12 divisors (see below), whose sum is σ = 293449728. Its totient is φ = 133384680.

The previous prime is 201617249. The next prime is 201617279. The reversal of 201617253 is 352716102.

It is a happy number.

201617253 is a `hidden beast` number, since 20 + 1 + 617 + 25 + 3 = 666.

It is not a de Polignac number, because 201617253 - 2² = 201617249 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201617203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84325 + ... + 86682.

It is an arithmetic number, because the mean of its divisors is an integer number (24454144).

Almost surely, 2^201617253 is an apocalyptic number.

It is an amenable number.

201617253 is a deficient number, since it is larger than the sum of its proper divisors (91832475).

201617253 is a wasteful number, since it uses less digits than its factorization.

201617253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171144 (or 171141 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 201617253 is about 14199.1990267057. The cubic root of 201617253 is about 586.3756100084.

The spelling of 201617253 in words is "two hundred one million, six hundred seventeen thousand, two hundred fifty-three".