201772 has 12 divisors (see below), whose sum is σ = 358456. Its totient is φ = 99360.

The previous prime is 201769. The next prime is 201781. The reversal of 201772 is 277102.

It is an unprimeable number.

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, 54 + ... + 637.

2²⁰¹⁷⁷² is an apocalyptic number.

It is an amenable number.

201772 is a deficient number, since it is larger than the sum of its proper divisors (156684).

201772 is a wasteful number, since it uses less digits than its factorization.

201772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 201772 is about 449.1903828000. The cubic root of 201772 is about 58.6525591653.

Adding to 201772 its reverse (277102), we get a palindrome (478874).

The spelling of 201772 in words is "two hundred one thousand, seven hundred seventy-two", and thus it is an iban number.