30745193 has 2 divisors, whose sum is σ = 30745194. Its totient is φ = 30745192.

The previous prime is 30745171. The next prime is 30745207. The reversal of 30745193 is 39154703.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26915344 + 3829849 = 5188^2 + 1957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30745193 is a prime.

It is not a weakly prime, because it can be changed into another prime (30745103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15372596 + 15372597.

It is an arithmetic number, because the mean of its divisors is an integer number (15372597).

Almost surely, 2^30745193 is an apocalyptic number.

It is an amenable number.

30745193 is a deficient number, since it is larger than the sum of its proper divisors (1).

30745193 is an equidigital number, since it uses as much as digits as its factorization.

30745193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 30745193 is about 5544.8348036709. The cubic root of 30745193 is about 313.2750018420.

Adding to 30745193 its reverse (39154703), we get a palindrome (69899896).

The spelling of 30745193 in words is "thirty million, seven hundred forty-five thousand, one hundred ninety-three".