201383397 has 6 divisors (see below), whose sum is σ = 290887142. Its totient is φ = 134255592.

The previous prime is 201383389. The next prime is 201383407. The reversal of 201383397 is 793383102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 158533281 + 42850116 = 12591^2 + 6546^2 .

It is not a de Polignac number, because 201383397 - 2³ = 201383389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201383317) 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 5 ways as a sum of consecutive naturals, for example, 11187958 + ... + 11187975.

Almost surely, 2^201383397 is an apocalyptic number.

It is an amenable number.

201383397 is a deficient number, since it is larger than the sum of its proper divisors (89503745).

201383397 is a wasteful number, since it uses less digits than its factorization.

201383397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22375939 (or 22375936 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 201383397 is about 14190.9618067275. The cubic root of 201383397 is about 586.1488097968.

The spelling of 201383397 in words is "two hundred one million, three hundred eighty-three thousand, three hundred ninety-seven".