4191049 has 2 divisors, whose sum is σ = 4191050. Its totient is φ = 4191048.

The previous prime is 4191043. The next prime is 4191067. The reversal of 4191049 is 9401914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 1517824 = 1635^2 + 1232^2 .

It is a cyclic number.

It is not a de Polignac number, because 4191049 - 2³ = 4191041 is a prime.

4191049 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4191041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2095524 + 2095525.

It is an arithmetic number, because the mean of its divisors is an integer number (2095525).

Almost surely, 2^4191049 is an apocalyptic number.

It is an amenable number.

4191049 is a deficient number, since it is larger than the sum of its proper divisors (1).

4191049 is an equidigital number, since it uses as much as digits as its factorization.

4191049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 4191049 is about 2047.2051680279. The cubic root of 4191049 is about 161.2281656232.

The spelling of 4191049 in words is "four million, one hundred ninety-one thousand, forty-nine".