30932945 has 8 divisors (see below), whose sum is σ = 39303144. Its totient is φ = 23290624.

The previous prime is 30932927. The next prime is 30932971. The reversal of 30932945 is 54923903.

It can be written as a sum of positive squares in 4 ways, for example, as 274576 + 30658369 = 524^2 + 5537^2 .

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 30932945 - 2²⁰ = 29884369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181874 + ... + 182043.

It is an arithmetic number, because the mean of its divisors is an integer number (4912893).

Almost surely, 2^30932945 is an apocalyptic number.

It is an amenable number.

30932945 is a deficient number, since it is larger than the sum of its proper divisors (8370199).

30932945 is a wasteful number, since it uses less digits than its factorization.

30932945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363939.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 30932945 is about 5561.7393861992. The cubic root of 30932945 is about 313.9114014303.

The spelling of 30932945 in words is "thirty million, nine hundred thirty-two thousand, nine hundred forty-five".