1108649417 has 2 divisors, whose sum is σ = 1108649418. Its totient is φ = 1108649416.

The previous prime is 1108649413. The next prime is 1108649419. The reversal of 1108649417 is 7149468011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1015314496 + 93334921 = 31864^2 + 9661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1108649417 - 2² = 1108649413 is a prime.

Together with 1108649419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1108649413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554324708 + 554324709.

It is an arithmetic number, because the mean of its divisors is an integer number (554324709).

Almost surely, 2^1108649417 is an apocalyptic number.

It is an amenable number.

1108649417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108649417 is an equidigital number, since it uses as much as digits as its factorization.

1108649417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1108649417 is about 33296.3874466886. The cubic root of 1108649417 is about 1034.9786974697.

The spelling of 1108649417 in words is "one billion, one hundred eight million, six hundred forty-nine thousand, four hundred seventeen".