201001277 has 2 divisors, whose sum is σ = 201001278. Its totient is φ = 201001276.

The previous prime is 201001243. The next prime is 201001289. The reversal of 201001277 is 772100102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193043236 + 7958041 = 13894^2 + 2821^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001277 - 2¹⁴ = 200984893 is a prime.

It is equal to p_11131337 and since 201001277 and 11131337 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201006277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500638 + 100500639.

It is an arithmetic number, because the mean of its divisors is an integer number (100500639).

Almost surely, 2^201001277 is an apocalyptic number.

It is an amenable number.

201001277 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001277 is an equidigital number, since it uses as much as digits as its factorization.

201001277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 201001277 is about 14177.4919150039. The cubic root of 201001277 is about 585.7778407877. Note that the first 3 decimals are identical.

Adding to 201001277 its reverse (772100102), we get a palindrome (973101379).

The spelling of 201001277 in words is "two hundred one million, one thousand, two hundred seventy-seven".