30013073 has 4 divisors (see below), whose sum is σ = 30192960. Its totient is φ = 29833188.

The previous prime is 30013063. The next prime is 30013111. The reversal of 30013073 is 37031003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37031003 = 5651 ⋅6553.

It is a cyclic number.

It is not a de Polignac number, because 30013073 - 2⁸ = 30012817 is a prime.

It is a Duffinian number.

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, 89693 + ... + 90026.

It is an arithmetic number, because the mean of its divisors is an integer number (7548240).

Almost surely, 2^30013073 is an apocalyptic number.

It is an amenable number.

30013073 is a deficient number, since it is larger than the sum of its proper divisors (179887).

30013073 is a wasteful number, since it uses less digits than its factorization.

30013073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179886.

The product of its (nonzero) digits is 189, while the sum is 17.

The square root of 30013073 is about 5478.4188412351. The cubic root of 30013073 is about 310.7683783194.

Adding to 30013073 its reverse (37031003), we get a palindrome (67044076).

The spelling of 30013073 in words is "thirty million, thirteen thousand, seventy-three".