2124919 has 2 divisors, whose sum is σ = 2124920. Its totient is φ = 2124918.

The previous prime is 2124887. The next prime is 2124943. The reversal of 2124919 is 9194212.

It is a happy number.

2124919 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 2124919 - 2⁵ = 2124887 is a prime.

It is a super-2 number, since 2×2124919² = 9030561513122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124019) 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, 1062459 + 1062460.

It is an arithmetic number, because the mean of its divisors is an integer number (1062460).

2^2124919 is an apocalyptic number.

2124919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124919 is an equidigital number, since it uses as much as digits as its factorization.

2124919 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2124919 is about 1457.7101906758. The cubic root of 2124919 is about 128.5624459921.

Subtracting from 2124919 its sum of digits (28), we obtain a triangular number (2124891 = T₂₀₆₁).

The spelling of 2124919 in words is "two million, one hundred twenty-four thousand, nine hundred nineteen".