68030453 has 2 divisors, whose sum is σ = 68030454. Its totient is φ = 68030452.

The previous prime is 68030449. The next prime is 68030467. The reversal of 68030453 is 35403086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65399569 + 2630884 = 8087^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 68030453 - 2² = 68030449 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 (68033453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34015226 + 34015227.

It is an arithmetic number, because the mean of its divisors is an integer number (34015227).

Almost surely, 2^68030453 is an apocalyptic number.

It is an amenable number.

68030453 is a deficient number, since it is larger than the sum of its proper divisors (1).

68030453 is an equidigital number, since it uses as much as digits as its factorization.

68030453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 68030453 is about 8248.0575288973. The cubic root of 68030453 is about 408.2264318056.

The spelling of 68030453 in words is "sixty-eight million, thirty thousand, four hundred fifty-three".