30985065 has 16 divisors (see below), whose sum is σ = 55084800. Its totient is φ = 16525296.

The previous prime is 30985063. The next prime is 30985081. The reversal of 30985065 is 56058903.

It is not a de Polignac number, because 30985065 - 2¹ = 30985063 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30985061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114625 + ... + 114894.

It is an arithmetic number, because the mean of its divisors is an integer number (3442800).

Almost surely, 2^30985065 is an apocalyptic number.

It is an amenable number.

30985065 is a deficient number, since it is larger than the sum of its proper divisors (24099735).

30985065 is a wasteful number, since it uses less digits than its factorization.

30985065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229533 (or 229527 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 30985065 is about 5566.4229986590. The cubic root of 30985065 is about 314.0876092645.

The spelling of 30985065 in words is "thirty million, nine hundred eighty-five thousand, sixty-five".