201430441 has 2 divisors, whose sum is σ = 201430442. Its totient is φ = 201430440.

The previous prime is 201430429. The next prime is 201430477. The reversal of 201430441 is 144034102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199939600 + 1490841 = 14140^2 + 1221^2 .

It is a cyclic number.

It is not a de Polignac number, because 201430441 - 2⁵ = 201430409 is a prime.

It is a super-2 number, since 2×201430441² = 81148445122908962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201436441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100715220 + 100715221.

It is an arithmetic number, because the mean of its divisors is an integer number (100715221).

Almost surely, 2^201430441 is an apocalyptic number.

It is an amenable number.

201430441 is a deficient number, since it is larger than the sum of its proper divisors (1).

201430441 is an equidigital number, since it uses as much as digits as its factorization.

201430441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 201430441 is about 14192.6192438182. The cubic root of 201430441 is about 586.1944485106.

Adding to 201430441 its reverse (144034102), we get a palindrome (345464543).

The spelling of 201430441 in words is "two hundred one million, four hundred thirty thousand, four hundred forty-one".