30132073 has 4 divisors (see below), whose sum is σ = 31171140. Its totient is φ = 29093008.

The previous prime is 30132061. The next prime is 30132079. The reversal of 30132073 is 37023103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37023103 = 13 ⋅2847931.

It can be written as a sum of positive squares in 2 ways, for example, as 25431849 + 4700224 = 5043^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 30132073 - 2⁹ = 30131561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30132073.

It is not an unprimeable number, because it can be changed into a prime (30132079) 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, 519490 + ... + 519547.

It is an arithmetic number, because the mean of its divisors is an integer number (7792785).

Almost surely, 2^30132073 is an apocalyptic number.

It is an amenable number.

30132073 is a deficient number, since it is larger than the sum of its proper divisors (1039067).

30132073 is a wasteful number, since it uses less digits than its factorization.

30132073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039066.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 30132073 is about 5489.2688948529. The cubic root of 30132073 is about 311.1785625527.

Adding to 30132073 its reverse (37023103), we get a palindrome (67155176).

The spelling of 30132073 in words is "thirty million, one hundred thirty-two thousand, seventy-three".