30318745 has 8 divisors (see below), whose sum is σ = 36500616. Its totient is φ = 24176256.

The previous prime is 30318733. The next prime is 30318779. The reversal of 30318745 is 54781303.

It can be written as a sum of positive squares in 4 ways, for example, as 594441 + 29724304 = 771^2 + 5452^2 .

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 30318745 - 2¹¹ = 30316697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8122 + ... + 11251.

It is an arithmetic number, because the mean of its divisors is an integer number (4562577).

Almost surely, 2^30318745 is an apocalyptic number.

It is an amenable number.

30318745 is a deficient number, since it is larger than the sum of its proper divisors (6181871).

30318745 is a wasteful number, since it uses less digits than its factorization.

30318745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19691.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 30318745 is about 5506.2459988635. The cubic root of 30318745 is about 311.8198369510.

The spelling of 30318745 in words is "thirty million, three hundred eighteen thousand, seven hundred forty-five".