124000819 has 2 divisors, whose sum is σ = 124000820. Its totient is φ = 124000818.

The previous prime is 124000757. The next prime is 124000871. The reversal of 124000819 is 918000421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124000819 - 2⁹ = 124000307 is a prime.

It is a super-2 number, since 2×124000819² = 30752406225341522, which contains 22 as substring.

124000819 is a modest number, since divided by 819 gives 124 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 124000793 and 124000802.

It is not a weakly prime, because it can be changed into another prime (124000879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62000409 + 62000410.

It is an arithmetic number, because the mean of its divisors is an integer number (62000410).

Almost surely, 2^124000819 is an apocalyptic number.

124000819 is a deficient number, since it is larger than the sum of its proper divisors (1).

124000819 is an equidigital number, since it uses as much as digits as its factorization.

124000819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 124000819 is about 11135.5654997849. The cubic root of 124000819 is about 498.6641930846.

The spelling of 124000819 in words is "one hundred twenty-four million, eight hundred nineteen", and thus it is an aban number.