2197559207 has 2 divisors, whose sum is σ = 2197559208. Its totient is φ = 2197559206.

The previous prime is 2197559183. The next prime is 2197559227. The reversal of 2197559207 is 7029557912.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2197559207 - 2²² = 2193364903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2197559227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098779603 + 1098779604.

It is an arithmetic number, because the mean of its divisors is an integer number (1098779604).

Almost surely, 2^2197559207 is an apocalyptic number.

2197559207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197559207 is an equidigital number, since it uses as much as digits as its factorization.

2197559207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 396900, while the sum is 47.

The square root of 2197559207 is about 46878.1314367371. The cubic root of 2197559207 is about 1300.1102878819.

The spelling of 2197559207 in words is "two billion, one hundred ninety-seven million, five hundred fifty-nine thousand, two hundred seven".