2001530361 has 8 divisors (see below), whose sum is σ = 2687907040. Its totient is φ = 1324753632.

The previous prime is 2001530359. The next prime is 2001530369. The reversal of 2001530361 is 1630351002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001530361 - 2¹ = 2001530359 is a prime.

It is a super-2 number, since 2×2001530361² = 8012247572009580642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001530369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2399500 + ... + 2400333.

It is an arithmetic number, because the mean of its divisors is an integer number (335988380).

Almost surely, 2^2001530361 is an apocalyptic number.

It is an amenable number.

2001530361 is a deficient number, since it is larger than the sum of its proper divisors (686376679).

2001530361 is a wasteful number, since it uses less digits than its factorization.

2001530361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799975.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 2001530361 is about 44738.4662343268. The cubic root of 2001530361 is about 1260.2423236376.

Adding to 2001530361 its reverse (1630351002), we get a palindrome (3631881363).

The spelling of 2001530361 in words is "two billion, one million, five hundred thirty thousand, three hundred sixty-one".