2203249661 has 2 divisors, whose sum is σ = 2203249662. Its totient is φ = 2203249660.

The previous prime is 2203249583. The next prime is 2203249679. The reversal of 2203249661 is 1669423022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1168340761 + 1034908900 = 34181^2 + 32170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2203249661 is a prime.

It is a super-2 number, since 2×2203249661² = 9708618137393229842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2203249681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101624830 + 1101624831.

It is an arithmetic number, because the mean of its divisors is an integer number (1101624831).

Almost surely, 2^2203249661 is an apocalyptic number.

It is an amenable number.

2203249661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2203249661 is an equidigital number, since it uses as much as digits as its factorization.

2203249661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 2203249661 is about 46938.7863179269. The cubic root of 2203249661 is about 1301.2315077609.

The spelling of 2203249661 in words is "two billion, two hundred three million, two hundred forty-nine thousand, six hundred sixty-one".