30402193 has 2 divisors, whose sum is σ = 30402194. Its totient is φ = 30402192.

The previous prime is 30402191. The next prime is 30402199. The reversal of 30402193 is 39120403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24482704 + 5919489 = 4948^2 + 2433^2 .

It is a cyclic number.

It is not a de Polignac number, because 30402193 - 2¹ = 30402191 is a prime.

Together with 30402191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30402191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201096 + 15201097.

It is an arithmetic number, because the mean of its divisors is an integer number (15201097).

Almost surely, 2^30402193 is an apocalyptic number.

It is an amenable number.

30402193 is a deficient number, since it is larger than the sum of its proper divisors (1).

30402193 is an equidigital number, since it uses as much as digits as its factorization.

30402193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30402193 is about 5513.8183684267. The cubic root of 30402193 is about 312.1056546897.

Adding to 30402193 its reverse (39120403), we get a palindrome (69522596).

The spelling of 30402193 in words is "thirty million, four hundred two thousand, one hundred ninety-three".