124039919 has 2 divisors, whose sum is σ = 124039920. Its totient is φ = 124039918.

The previous prime is 124039879. The next prime is 124040009. The reversal of 124039919 is 919930421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124039919 is a prime.

It is a super-2 number, since 2×124039919² = 30771803011053122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124039319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62019959 + 62019960.

It is an arithmetic number, because the mean of its divisors is an integer number (62019960).

Almost surely, 2^124039919 is an apocalyptic number.

124039919 is a deficient number, since it is larger than the sum of its proper divisors (1).

124039919 is an equidigital number, since it uses as much as digits as its factorization.

124039919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 124039919 is about 11137.3209974392. The cubic root of 124039919 is about 498.7166005905.

It can be divided in two parts, 12403 and 9919, that added together give a palindrome (22322).

The spelling of 124039919 in words is "one hundred twenty-four million, thirty-nine thousand, nine hundred nineteen".