201318772 has 6 divisors (see below), whose sum is σ = 352307858. Its totient is φ = 100659384.

The previous prime is 201318769. The next prime is 201318791. The reversal of 201318772 is 277813102.

It can be written as a sum of positive squares in only one way, i.e., 201242596 + 76176 = 14186^2 + 276^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25164843 + ... + 25164850.

Almost surely, 2^201318772 is an apocalyptic number.

It is an amenable number.

201318772 is a deficient number, since it is larger than the sum of its proper divisors (150989086).

201318772 is a wasteful number, since it uses less digits than its factorization.

201318772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50329697 (or 50329695 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 201318772 is about 14188.6846465767. The cubic root of 201318772 is about 586.0861036683.

The spelling of 201318772 in words is "two hundred one million, three hundred eighteen thousand, seven hundred seventy-two".