201332401 has 2 divisors, whose sum is σ = 201332402. Its totient is φ = 201332400.

The previous prime is 201332399. The next prime is 201332419. The reversal of 201332401 is 104233102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200250801 + 1081600 = 14151^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 201332401 - 2¹ = 201332399 is a prime.

Together with 201332399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (201332441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100666200 + 100666201.

It is an arithmetic number, because the mean of its divisors is an integer number (100666201).

Almost surely, 2^201332401 is an apocalyptic number.

It is an amenable number.

201332401 is a deficient number, since it is larger than the sum of its proper divisors (1).

201332401 is an equidigital number, since it uses as much as digits as its factorization.

201332401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 201332401 is about 14189.1649155262. The cubic root of 201332401 is about 586.0993291070.

Adding to 201332401 its reverse (104233102), we get a palindrome (305565503).

The spelling of 201332401 in words is "two hundred one million, three hundred thirty-two thousand, four hundred one".