30009013 has 4 divisors (see below), whose sum is σ = 30022540. Its totient is φ = 29995488.

The previous prime is 30008989. The next prime is 30009061. The reversal of 30009013 is 31090003.

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 22297284 + 7711729 = 4722^2 + 2777^2 .

It is a cyclic number.

It is not a de Polignac number, because 30009013 - 2¹⁷ = 29877941 is a prime.

It is a super-2 number, since 2×30009013² = 1801081722468338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30009613) 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, 2568 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (7505635).

Almost surely, 2^30009013 is an apocalyptic number.

It is an amenable number.

30009013 is a deficient number, since it is larger than the sum of its proper divisors (13527).

30009013 is a wasteful number, since it uses less digits than its factorization.

30009013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13526.

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

The square root of 30009013 is about 5478.0482838325. The cubic root of 30009013 is about 310.7543646870.

Adding to 30009013 its reverse (31090003), we get a palindrome (61099016).

The spelling of 30009013 in words is "thirty million, nine thousand, thirteen".