245244773 has 2 divisors, whose sum is σ = 245244774. Its totient is φ = 245244772.

The previous prime is 245244763. The next prime is 245244787. The reversal of 245244773 is 377442542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203861284 + 41383489 = 14278^2 + 6433^2 .

It is a cyclic number.

It is not a de Polignac number, because 245244773 - 2⁴ = 245244757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245244763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122622386 + 122622387.

It is an arithmetic number, because the mean of its divisors is an integer number (122622387).

Almost surely, 2^245244773 is an apocalyptic number.

It is an amenable number.

245244773 is a deficient number, since it is larger than the sum of its proper divisors (1).

245244773 is an equidigital number, since it uses as much as digits as its factorization.

245244773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 38.

The square root of 245244773 is about 15660.2928772102. The cubic root of 245244773 is about 625.9407894471.

The spelling of 245244773 in words is "two hundred forty-five million, two hundred forty-four thousand, seven hundred seventy-three".