201351789 has 24 divisors (see below), whose sum is σ = 305170944. Its totient is φ = 127764000.

The previous prime is 201351763. The next prime is 201351809. The reversal of 201351789 is 987153102.

It is not a de Polignac number, because 201351789 - 2¹¹ = 201349741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201351749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11104 + ... + 22934.

It is an arithmetic number, because the mean of its divisors is an integer number (12715456).

Almost surely, 2^201351789 is an apocalyptic number.

It is an amenable number.

201351789 is a deficient number, since it is larger than the sum of its proper divisors (103819155).

201351789 is a wasteful number, since it uses less digits than its factorization.

201351789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11929 (or 11926 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 201351789 is about 14189.8480964385. The cubic root of 201351789 is about 586.1181419906.

The spelling of 201351789 in words is "two hundred one million, three hundred fifty-one thousand, seven hundred eighty-nine".