245605603 has 2 divisors, whose sum is σ = 245605604. Its totient is φ = 245605602.

The previous prime is 245605589. The next prime is 245605627. The reversal of 245605603 is 306506542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245605603 - 2²¹ = 243508451 is a prime.

It is a super-2 number, since 2×245605603² = 120644224449987218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245605643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122802801 + 122802802.

It is an arithmetic number, because the mean of its divisors is an integer number (122802802).

Almost surely, 2^245605603 is an apocalyptic number.

245605603 is a deficient number, since it is larger than the sum of its proper divisors (1).

245605603 is an equidigital number, since it uses as much as digits as its factorization.

245605603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 245605603 is about 15671.8091808189. The cubic root of 245605603 is about 626.2476224042.

The spelling of 245605603 in words is "two hundred forty-five million, six hundred five thousand, six hundred three".