2198452609 has 2 divisors, whose sum is σ = 2198452610. Its totient is φ = 2198452608.

The previous prime is 2198452601. The next prime is 2198452649. The reversal of 2198452609 is 9062548912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2161971009 + 36481600 = 46497^2 + 6040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2198452609 - 2³ = 2198452601 is a prime.

It is not a weakly prime, because it can be changed into another prime (2198452601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099226304 + 1099226305.

It is an arithmetic number, because the mean of its divisors is an integer number (1099226305).

Almost surely, 2^2198452609 is an apocalyptic number.

It is an amenable number.

2198452609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198452609 is an equidigital number, since it uses as much as digits as its factorization.

2198452609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 2198452609 is about 46887.6594532079. The cubic root of 2198452609 is about 1300.2864475292.

The spelling of 2198452609 in words is "two billion, one hundred ninety-eight million, four hundred fifty-two thousand, six hundred nine".