673841149 has 2 divisors, whose sum is σ = 673841150. Its totient is φ = 673841148.

The previous prime is 673841059. The next prime is 673841153. The reversal of 673841149 is 941148376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 661415524 + 12425625 = 25718^2 + 3525^2 .

It is a cyclic number.

It is not a de Polignac number, because 673841149 - 2¹⁷ = 673710077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673841549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336920574 + 336920575.

It is an arithmetic number, because the mean of its divisors is an integer number (336920575).

Almost surely, 2^673841149 is an apocalyptic number.

It is an amenable number.

673841149 is a deficient number, since it is larger than the sum of its proper divisors (1).

673841149 is an equidigital number, since it uses as much as digits as its factorization.

673841149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 673841149 is about 25958.4504352629. The cubic root of 673841149 is about 876.7030337785.

The spelling of 673841149 in words is "six hundred seventy-three million, eight hundred forty-one thousand, one hundred forty-nine".