30945353 has 2 divisors, whose sum is σ = 30945354. Its totient is φ = 30945352.

The previous prime is 30945331. The next prime is 30945359. The reversal of 30945353 is 35354903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26245129 + 4700224 = 5123^2 + 2168^2 .

It is an emirp because it is prime and its reverse (35354903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30945353 - 2¹² = 30941257 is a prime.

It is a super-2 number, since 2×30945353² = 1915229744589218, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30945359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15472676 + 15472677.

It is an arithmetic number, because the mean of its divisors is an integer number (15472677).

Almost surely, 2^30945353 is an apocalyptic number.

It is an amenable number.

30945353 is a deficient number, since it is larger than the sum of its proper divisors (1).

30945353 is an equidigital number, since it uses as much as digits as its factorization.

30945353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 30945353 is about 5562.8547527326. The cubic root of 30945353 is about 313.9533684657.

The spelling of 30945353 in words is "thirty million, nine hundred forty-five thousand, three hundred fifty-three".