30745017 has 12 divisors (see below), whose sum is σ = 45941220. Its totient is φ = 19789728.

The previous prime is 30745009. The next prime is 30745031. The reversal of 30745017 is 71054703.

It can be written as a sum of positive squares in 2 ways, for example, as 20575296 + 10169721 = 4536^2 + 3189^2 .

It is not a de Polignac number, because 30745017 - 2³ = 30745009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30745007) 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 11 ways as a sum of consecutive naturals, for example, 58638 + ... + 59159.

It is an arithmetic number, because the mean of its divisors is an integer number (3828435).

Almost surely, 2^30745017 is an apocalyptic number.

It is an amenable number.

30745017 is a deficient number, since it is larger than the sum of its proper divisors (15196203).

30745017 is a wasteful number, since it uses less digits than its factorization.

30745017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117832 (or 117829 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 30745017 is about 5544.8189330221. The cubic root of 30745017 is about 313.2744040629.

The spelling of 30745017 in words is "thirty million, seven hundred forty-five thousand, seventeen".