245043306733 has 2 divisors, whose sum is σ = 245043306734. Its totient is φ = 245043306732.

The previous prime is 245043306721. The next prime is 245043306743. The reversal of 245043306733 is 337603340542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242539505289 + 2503801444 = 492483^2 + 50038^2 .

It is a cyclic number.

It is not a de Polignac number, because 245043306733 - 2²⁹ = 244506435821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245043306743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122521653366 + 122521653367.

It is an arithmetic number, because the mean of its divisors is an integer number (122521653367).

Almost surely, 2^245043306733 is an apocalyptic number.

It is an amenable number.

245043306733 is a deficient number, since it is larger than the sum of its proper divisors (1).

245043306733 is an equidigital number, since it uses as much as digits as its factorization.

245043306733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 40.

The spelling of 245043306733 in words is "two hundred forty-five billion, forty-three million, three hundred six thousand, seven hundred thirty-three".