2499919 has 2 divisors, whose sum is σ = 2499920. Its totient is φ = 2499918.

The previous prime is 2499907. The next prime is 2499923. The reversal of 2499919 is 9199942.

2499919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2499919 - 2¹¹ = 2497871 is a prime.

It is a super-2 number, since 2×2499919² = 12499190013122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2499949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249959 + 1249960.

It is an arithmetic number, because the mean of its divisors is an integer number (1249960).

2^2499919 is an apocalyptic number.

2499919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499919 is an equidigital number, since it uses as much as digits as its factorization.

2499919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 43.

The square root of 2499919 is about 1581.1132154277. The cubic root of 2499919 is about 135.7194150284.

It can be divided in two parts, 249991 and 9, that added together give a square (250000 = 500²).

The spelling of 2499919 in words is "two million, four hundred ninety-nine thousand, nine hundred nineteen".