2499149 has 2 divisors, whose sum is σ = 2499150. Its totient is φ = 2499148.

The previous prime is 2499143. The next prime is 2499151. The reversal of 2499149 is 9419942.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1643524 + 855625 = 1282^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2499149 - 2⁸ = 2498893 is a prime.

Together with 2499151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2499143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249574 + 1249575.

It is an arithmetic number, because the mean of its divisors is an integer number (1249575).

2^2499149 is an apocalyptic number.

It is an amenable number.

2499149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499149 is an equidigital number, since it uses as much as digits as its factorization.

2499149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 2499149 is about 1580.8696973502. The cubic root of 2499149 is about 135.7054792861.

The spelling of 2499149 in words is "two million, four hundred ninety-nine thousand, one hundred forty-nine".