201742 has 8 divisors (see below), whose sum is σ = 318600. Its totient is φ = 95544.

The previous prime is 201731. The next prime is 201743. The reversal of 201742 is 247102.

201742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2617 + ... + 2692.

It is an arithmetic number, because the mean of its divisors is an integer number (39825).

2²⁰¹⁷⁴² is an apocalyptic number.

201742 is a deficient number, since it is larger than the sum of its proper divisors (116858).

201742 is a wasteful number, since it uses less digits than its factorization.

201742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 201742 is about 449.1569881456. The cubic root of 201742 is about 58.6496521481.

Adding to 201742 its reverse (247102), we get a palindrome (448844).

The spelling of 201742 in words is "two hundred one thousand, seven hundred forty-two", and thus it is an iban number.