30013009 has 4 divisors (see below), whose sum is σ = 32321716. Its totient is φ = 27704304.

The previous prime is 30013003. The next prime is 30013033. The reversal of 30013009 is 90031003.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3459600 + 26553409 = 1860^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 30013009 - 2⁵ = 30012977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30012983 and 30013001.

It is not an unprimeable number, because it can be changed into a prime (30013003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154334 + ... + 1154359.

It is an arithmetic number, because the mean of its divisors is an integer number (8080429).

Almost surely, 2^30013009 is an apocalyptic number.

It is an amenable number.

30013009 is a deficient number, since it is larger than the sum of its proper divisors (2308707).

30013009 is a wasteful number, since it uses less digits than its factorization.

30013009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308706.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 30013009 is about 5478.4130001306. The cubic root of 30013009 is about 310.7681574246.

The spelling of 30013009 in words is "thirty million, thirteen thousand, nine".