201330851 has 2 divisors, whose sum is σ = 201330852. Its totient is φ = 201330850.

The previous prime is 201330823. The next prime is 201330863. The reversal of 201330851 is 158033102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201330851 is a prime.

It is a super-2 number, since 2×201330851² = 81068223128768402, which contains 22 as substring.

It is a Chen prime.

It is equal to p_11148602 and since 201330851 and 11148602 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (201339851) by changing a digit.

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 as a sum of consecutive naturals, namely, 100665425 + 100665426.

It is an arithmetic number, because the mean of its divisors is an integer number (100665426).

Almost surely, 2^201330851 is an apocalyptic number.

201330851 is a deficient number, since it is larger than the sum of its proper divisors (1).

201330851 is an equidigital number, since it uses as much as digits as its factorization.

201330851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 201330851 is about 14189.1102962800. The cubic root of 201330851 is about 586.0978250334.

Adding to 201330851 its reverse (158033102), we get a palindrome (359363953).

The spelling of 201330851 in words is "two hundred one million, three hundred thirty thousand, eight hundred fifty-one".