612605243 has 2 divisors, whose sum is σ = 612605244. Its totient is φ = 612605242.

The previous prime is 612605237. The next prime is 612605293. The reversal of 612605243 is 342506216.

612605243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612605243 - 2⁸ = 612604987 is a prime.

It is not a weakly prime, because it can be changed into another prime (612605293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306302621 + 306302622.

It is an arithmetic number, because the mean of its divisors is an integer number (306302622).

Almost surely, 2^612605243 is an apocalyptic number.

612605243 is a deficient number, since it is larger than the sum of its proper divisors (1).

612605243 is an equidigital number, since it uses as much as digits as its factorization.

612605243 is an odious number, because the sum of its binary digits is odd.

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

The square root of 612605243 is about 24750.8634798869. The cubic root of 612605243 is about 849.2982641943.

The spelling of 612605243 in words is "six hundred twelve million, six hundred five thousand, two hundred forty-three".