2199250397 has 2 divisors, whose sum is σ = 2199250398. Its totient is φ = 2199250396.

The previous prime is 2199250393. The next prime is 2199250477. The reversal of 2199250397 is 7930529912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2181450436 + 17799961 = 46706^2 + 4219^2 .

It is a cyclic number.

It is not a de Polignac number, because 2199250397 - 2² = 2199250393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2199250393) 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, 1099625198 + 1099625199.

It is an arithmetic number, because the mean of its divisors is an integer number (1099625199).

Almost surely, 2^2199250397 is an apocalyptic number.

It is an amenable number.

2199250397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2199250397 is an equidigital number, since it uses as much as digits as its factorization.

2199250397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 2199250397 is about 46896.1661226160. The cubic root of 2199250397 is about 1300.4437138211.

The spelling of 2199250397 in words is "two billion, one hundred ninety-nine million, two hundred fifty thousand, three hundred ninety-seven".