8919149 has 2 divisors, whose sum is σ = 8919150. Its totient is φ = 8919148.

The previous prime is 8919139. The next prime is 8919161. The reversal of 8919149 is 9419198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5522500 + 3396649 = 2350^2 + 1843^2 .

It is a cyclic number.

It is not a de Polignac number, because 8919149 - 2⁴ = 8919133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8919139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4459574 + 4459575.

It is an arithmetic number, because the mean of its divisors is an integer number (4459575).

Almost surely, 2^8919149 is an apocalyptic number.

It is an amenable number.

8919149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8919149 is an equidigital number, since it uses as much as digits as its factorization.

8919149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 41.

The square root of 8919149 is about 2986.4944332779. The cubic root of 8919149 is about 207.3836304971.

The spelling of 8919149 in words is "eight million, nine hundred nineteen thousand, one hundred forty-nine".