30112793 has 2 divisors, whose sum is σ = 30112794. Its totient is φ = 30112792.

The previous prime is 30112769. The next prime is 30112799. The reversal of 30112793 is 39721103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21603904 + 8508889 = 4648^2 + 2917^2 .

It is an emirp because it is prime and its reverse (39721103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30112793 - 2¹⁰ = 30111769 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30112799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056396 + 15056397.

It is an arithmetic number, because the mean of its divisors is an integer number (15056397).

Almost surely, 2^30112793 is an apocalyptic number.

It is an amenable number.

30112793 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112793 is an equidigital number, since it uses as much as digits as its factorization.

30112793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 30112793 is about 5487.5124601225. The cubic root of 30112793 is about 311.1121792150.

Adding to 30112793 its reverse (39721103), we get a palindrome (69833896).

The spelling of 30112793 in words is "thirty million, one hundred twelve thousand, seven hundred ninety-three".