30681001 has 8 divisors (see below), whose sum is σ = 33246080. Its totient is φ = 28145232.

The previous prime is 30680999. The next prime is 30681047. The reversal of 30681001 is 10018603.

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

It is a cyclic number.

It is not a de Polignac number, because 30681001 - 2¹ = 30680999 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 30681001.

It is not an unprimeable number, because it can be changed into a prime (30681061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5121 + ... + 9358.

It is an arithmetic number, because the mean of its divisors is an integer number (4155760).

Almost surely, 2^30681001 is an apocalyptic number.

It is an amenable number.

30681001 is a deficient number, since it is larger than the sum of its proper divisors (2565079).

30681001 is a wasteful number, since it uses less digits than its factorization.

30681001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14655.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 30681001 is about 5539.0433289513. The cubic root of 30681001 is about 313.0568239879.

Adding to 30681001 its reverse (10018603), we get a palindrome (40699604).

The spelling of 30681001 in words is "thirty million, six hundred eighty-one thousand, one".