2203645853 has 2 divisors, whose sum is σ = 2203645854. Its totient is φ = 2203645852.

The previous prime is 2203645849. The next prime is 2203645861. The reversal of 2203645853 is 3585463022.

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., 2026170169 + 177475684 = 45013^2 + 13322^2 .

It is a cyclic number.

It is not a de Polignac number, because 2203645853 - 2² = 2203645849 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2203645153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101822926 + 1101822927.

It is an arithmetic number, because the mean of its divisors is an integer number (1101822927).

Almost surely, 2^2203645853 is an apocalyptic number.

It is an amenable number.

2203645853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2203645853 is an equidigital number, since it uses as much as digits as its factorization.

2203645853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 2203645853 is about 46943.0064333336. The cubic root of 2203645853 is about 1301.3094996206.

The spelling of 2203645853 in words is "two billion, two hundred three million, six hundred forty-five thousand, eight hundred fifty-three".