30865012 has 12 divisors (see below), whose sum is σ = 54571300. Its totient is φ = 15273216.

The previous prime is 30865001. The next prime is 30865033. The reversal of 30865012 is 21056803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25361296 + 5503716 = 5036^2 + 2346^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39387 + ... + 40162.

Almost surely, 2^30865012 is an apocalyptic number.

It is an amenable number.

30865012 is a deficient number, since it is larger than the sum of its proper divisors (23706288).

30865012 is a wasteful number, since it uses less digits than its factorization.

30865012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79650 (or 79648 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 30865012 is about 5555.6288572942. The cubic root of 30865012 is about 313.6814354707.

The spelling of 30865012 in words is "thirty million, eight hundred sixty-five thousand, twelve".