30803453 has 2 divisors, whose sum is σ = 30803454. Its totient is φ = 30803452.

The previous prime is 30803449. The next prime is 30803483. The reversal of 30803453 is 35430803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22259524 + 8543929 = 4718^2 + 2923^2 .

It is a cyclic number.

It is not a de Polignac number, because 30803453 - 2² = 30803449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30803413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15401726 + 15401727.

It is an arithmetic number, because the mean of its divisors is an integer number (15401727).

Almost surely, 2^30803453 is an apocalyptic number.

It is an amenable number.

30803453 is a deficient number, since it is larger than the sum of its proper divisors (1).

30803453 is an equidigital number, since it uses as much as digits as its factorization.

30803453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30803453 is about 5550.0858551918. The cubic root of 30803453 is about 313.4727550902.

The spelling of 30803453 in words is "thirty million, eight hundred three thousand, four hundred fifty-three".