201244005 has 12 divisors (see below), whose sum is σ = 348823020. Its totient is φ = 107330112.

The previous prime is 201244003. The next prime is 201244007. The reversal of 201244005 is 500442102.

It is an interprime number because it is at equal distance from previous prime (201244003) and next prime (201244007).

It can be written as a sum of positive squares in 2 ways, for example, as 126023076 + 75220929 = 11226^2 + 8673^2 .

It is not a de Polignac number, because 201244005 - 2¹ = 201244003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201244003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2236000 + ... + 2236089.

It is an arithmetic number, because the mean of its divisors is an integer number (29068585).

Almost surely, 2^201244005 is an apocalyptic number.

It is an amenable number.

201244005 is a deficient number, since it is larger than the sum of its proper divisors (147579015).

201244005 is a wasteful number, since it uses less digits than its factorization.

201244005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472100 (or 4472097 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 201244005 is about 14186.0496615513. The cubic root of 201244005 is about 586.0135399342.

Adding to 201244005 its reverse (500442102), we get a palindrome (701686107).

The spelling of 201244005 in words is "two hundred one million, two hundred forty-four thousand, five".