201617001 has 6 divisors (see below), whose sum is σ = 291224570. Its totient is φ = 134411328.

The previous prime is 201616993. The next prime is 201617027. The reversal of 201617001 is 100716102.

It can be written as a sum of positive squares in only one way, i.e., 132710400 + 68906601 = 11520^2 + 8301^2 .

It is not a de Polignac number, because 201617001 - 2³ = 201616993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201617081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11200936 + ... + 11200953.

Almost surely, 2^201617001 is an apocalyptic number.

It is an amenable number.

201617001 is a deficient number, since it is larger than the sum of its proper divisors (89607569).

201617001 is a wasteful number, since it uses less digits than its factorization.

201617001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22401895 (or 22401892 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 201617001 is about 14199.1901529629. The cubic root of 201617001 is about 586.3753657060.

The spelling of 201617001 in words is "two hundred one million, six hundred seventeen thousand, one".