30966745 has 8 divisors (see below), whose sum is σ = 37191816. Its totient is φ = 24752256.

The previous prime is 30966739. The next prime is 30966757. The reversal of 30966745 is 54766903.

It can be written as a sum of positive squares in 4 ways, for example, as 1056784 + 29909961 = 1028^2 + 5469^2 .

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 30966745 - 2¹¹ = 30964697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30966698 and 30966707.

It is an unprimeable number.

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, 6999 + ... + 10531.

It is an arithmetic number, because the mean of its divisors is an integer number (4648977).

Almost surely, 2^30966745 is an apocalyptic number.

It is an amenable number.

30966745 is a deficient number, since it is larger than the sum of its proper divisors (6225071).

30966745 is a wasteful number, since it uses less digits than its factorization.

30966745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 30966745 is about 5564.7771743350. Note that the first 3 decimals coincide. The cubic root of 30966745 is about 314.0256953562.

The spelling of 30966745 in words is "thirty million, nine hundred sixty-six thousand, seven hundred forty-five".