30681097 has 8 divisors (see below), whose sum is σ = 31311176. Its totient is φ = 30056832.

The previous prime is 30681061. The next prime is 30681127. The reversal of 30681097 is 79018603.

It can be written as a sum of positive squares in 4 ways, for example, as 576 + 30680521 = 24^2 + 5539^2 .

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 30681097 - 2¹¹ = 30679049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30681047) 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, 10123 + ... + 12799.

It is an arithmetic number, because the mean of its divisors is an integer number (3913897).

Almost surely, 2^30681097 is an apocalyptic number.

It is an amenable number.

30681097 is a deficient number, since it is larger than the sum of its proper divisors (630079).

30681097 is a wasteful number, since it uses less digits than its factorization.

30681097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 30681097 is about 5539.0519947009. The cubic root of 30681097 is about 313.0571505029.

The spelling of 30681097 in words is "thirty million, six hundred eighty-one thousand, ninety-seven".