3645201001 has 4 divisors (see below), whose sum is σ = 3925601092. Its totient is φ = 3364800912.

The previous prime is 3645200983. The next prime is 3645201019. The reversal of 3645201001 is 1001025463.

3645201001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3645200983) and next prime (3645201019).

It can be written as a sum of positive squares in 2 ways, for example, as 2399040400 + 1246160601 = 48980^2 + 35301^2 .

It is a cyclic number.

It is not a de Polignac number, because 3645201001 - 2⁵ = 3645200969 is a prime.

It is the 60376-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3645201401) by changing a digit.

It is a nontrivial repunit in base 60375.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140200026 + ... + 140200051.

It is an arithmetic number, because the mean of its divisors is an integer number (981400273).

Almost surely, 2^3645201001 is an apocalyptic number.

It is an amenable number.

3645201001 is a deficient number, since it is larger than the sum of its proper divisors (280400091).

3645201001 is a wasteful number, since it uses less digits than its factorization.

3645201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280400090.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3645201001 is about 60375.5000062111. The cubic root of 3645201001 is about 1539.0066401208.

Adding to 3645201001 its reverse (1001025463), we get a palindrome (4646226464).

The spelling of 3645201001 in words is "three billion, six hundred forty-five million, two hundred one thousand, one".