4866149 has 2 divisors, whose sum is σ = 4866150. Its totient is φ = 4866148.

The previous prime is 4866139. The next prime is 4866151. The reversal of 4866149 is 9416684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3062500 + 1803649 = 1750^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 4866149 - 2²⁰ = 3817573 is a prime.

It is a Sophie Germain prime.

Together with 4866151, it forms a pair of twin primes.

It is a Chen 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 (4866139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2433074 + 2433075.

It is an arithmetic number, because the mean of its divisors is an integer number (2433075).

Almost surely, 2^4866149 is an apocalyptic number.

It is an amenable number.

4866149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4866149 is an equidigital number, since it uses as much as digits as its factorization.

4866149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 4866149 is about 2205.9349491769. The cubic root of 4866149 is about 169.4578925057.

The spelling of 4866149 in words is "four million, eight hundred sixty-six thousand, one hundred forty-nine".