245417693 has 2 divisors, whose sum is σ = 245417694. Its totient is φ = 245417692.

The previous prime is 245417657. The next prime is 245417713. The reversal of 245417693 is 396714542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208426969 + 36990724 = 14437^2 + 6082^2 .

It is a cyclic number.

It is not a de Polignac number, because 245417693 - 2⁶ = 245417629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245417693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245417603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122708846 + 122708847.

It is an arithmetic number, because the mean of its divisors is an integer number (122708847).

Almost surely, 2^245417693 is an apocalyptic number.

It is an amenable number.

245417693 is a deficient number, since it is larger than the sum of its proper divisors (1).

245417693 is an equidigital number, since it uses as much as digits as its factorization.

245417693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 245417693 is about 15665.8128738984. The cubic root of 245417693 is about 626.0878700567.

The spelling of 245417693 in words is "two hundred forty-five million, four hundred seventeen thousand, six hundred ninety-three".