201689003 has 4 divisors (see below), whose sum is σ = 213553080. Its totient is φ = 189824928.

The previous prime is 201688979. The next prime is 201689017. The reversal of 201689003 is 300986102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201689003 - 2¹⁴ = 201672619 is a prime.

It is a super-2 number, since 2×201689003² = 81356907862268018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201689063) 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 3 ways as a sum of consecutive naturals, for example, 5932013 + ... + 5932046.

It is an arithmetic number, because the mean of its divisors is an integer number (53388270).

Almost surely, 2^201689003 is an apocalyptic number.

201689003 is a deficient number, since it is larger than the sum of its proper divisors (11864077).

201689003 is a wasteful number, since it uses less digits than its factorization.

201689003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11864076.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 201689003 is about 14201.7253529281. The cubic root of 201689003 is about 586.4451600420.

It can be divided in two parts, 2016 and 89003, that added together give a palindrome (91019).

The spelling of 201689003 in words is "two hundred one million, six hundred eighty-nine thousand, three".