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401201401 is a prime number
BaseRepresentation
bin10111111010011…
…101100011111001
31000221221010212011
4113322131203321
51310201421101
6103451045521
712641104246
oct2772354371
91027833764
10401201401
11196516607
12b24408a1
13651723a3
143b3d85cd
152534e751
hex17e9d8f9

401201401 has 2 divisors, whose sum is σ = 401201402. Its totient is φ = 401201400.

The previous prime is 401201393. The next prime is 401201407. The reversal of 401201401 is 104102104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208658025 + 192543376 = 14445^2 + 13876^2 .

It is a cyclic number.

It is not a de Polignac number, because 401201401 - 23 = 401201393 is a prime.

It is not a weakly prime, because it can be changed into another prime (401201407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200600700 + 200600701.

It is an arithmetic number, because the mean of its divisors is an integer number (200600701).

Almost surely, 2401201401 is an apocalyptic number.

It is an amenable number.

401201401 is a deficient number, since it is larger than the sum of its proper divisors (1).

401201401 is an equidigital number, since it uses as much as digits as its factorization.

401201401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 401201401 is about 20030.0125062367. The cubic root of 401201401 is about 737.5432289513.

Adding to 401201401 its reverse (104102104), we get a palindrome (505303505).

The spelling of 401201401 in words is "four hundred one million, two hundred one thousand, four hundred one".