3638131201 has 16 divisors (see below), whose sum is σ = 3809714688. Its totient is φ = 3470256000.

The previous prime is 3638131199. The next prime is 3638131207. The reversal of 3638131201 is 1021318363.

It is a cyclic number.

It is not a de Polignac number, because 3638131201 - 2¹ = 3638131199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3638131201.

It is not an unprimeable number, because it can be changed into a prime (3638131207) 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, 727030 + ... + 732016.

It is an arithmetic number, because the mean of its divisors is an integer number (238107168).

Almost surely, 2^3638131201 is an apocalyptic number.

3638131201 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3638131201 is a deficient number, since it is larger than the sum of its proper divisors (171583487).

3638131201 is a wasteful number, since it uses less digits than its factorization.

3638131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3638131201 is about 60316.9230067317. The cubic root of 3638131201 is about 1538.0110378767.

Adding to 3638131201 its reverse (1021318363), we get a palindrome (4659449564).

The spelling of 3638131201 in words is "three billion, six hundred thirty-eight million, one hundred thirty-one thousand, two hundred one".