201000401 has 16 divisors (see below), whose sum is σ = 248198400. Its totient is φ = 162146880.

The previous prime is 201000389. The next prime is 201000439. The reversal of 201000401 is 104000102.

It is not a de Polignac number, because 201000401 - 2⁶ = 201000337 is a prime.

It is a super-2 number, since 2×201000401² = 80802322404321602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11405 + ... + 23066.

It is an arithmetic number, because the mean of its divisors is an integer number (15512400).

Almost surely, 2^201000401 is an apocalyptic number.

It is an amenable number.

201000401 is a deficient number, since it is larger than the sum of its proper divisors (47197999).

201000401 is an equidigital number, since it uses as much as digits as its factorization.

201000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34509 (or 34495 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 201000401 is about 14177.4610209304. The cubic root of 201000401 is about 585.7769898111.

Adding to 201000401 its reverse (104000102), we get a palindrome (305000503).

The spelling of 201000401 in words is "two hundred one million, four hundred one", and thus it is an aban number.