201330251 has 4 divisors (see below), whose sum is σ = 211926600. Its totient is φ = 190733904.

The previous prime is 201330221. The next prime is 201330271. The reversal of 201330251 is 152033102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201330251 - 2²² = 197135947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201330211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5298146 + ... + 5298183.

It is an arithmetic number, because the mean of its divisors is an integer number (52981650).

Almost surely, 2^201330251 is an apocalyptic number.

201330251 is a deficient number, since it is larger than the sum of its proper divisors (10596349).

201330251 is a wasteful number, since it uses less digits than its factorization.

201330251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10596348.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 201330251 is about 14189.0891532896. The cubic root of 201330251 is about 586.0972428092.

Adding to 201330251 its reverse (152033102), we get a palindrome (353363353).

The spelling of 201330251 in words is "two hundred one million, three hundred thirty thousand, two hundred fifty-one".