283198109 has 2 divisors, whose sum is σ = 283198110. Its totient is φ = 283198108.

The previous prime is 283198073. The next prime is 283198127. The reversal of 283198109 is 901891382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168922009 + 114276100 = 12997^2 + 10690^2 .

It is a cyclic number.

It is not a de Polignac number, because 283198109 - 2¹⁶ = 283132573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (283198159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141599054 + 141599055.

It is an arithmetic number, because the mean of its divisors is an integer number (141599055).

Almost surely, 2^283198109 is an apocalyptic number.

It is an amenable number.

283198109 is a deficient number, since it is larger than the sum of its proper divisors (1).

283198109 is an equidigital number, since it uses as much as digits as its factorization.

283198109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 283198109 is about 16828.4909899848. The cubic root of 283198109 is about 656.6946069633.

The spelling of 283198109 in words is "two hundred eighty-three million, one hundred ninety-eight thousand, one hundred nine".