124812019 has 2 divisors, whose sum is σ = 124812020. Its totient is φ = 124812018.

The previous prime is 124811987. The next prime is 124812029. The reversal of 124812019 is 910218421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124812019 - 2⁵ = 124811987 is a prime.

It is a super-3 number, since 3×124812019³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (124812029) 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, 62406009 + 62406010.

It is an arithmetic number, because the mean of its divisors is an integer number (62406010).

Almost surely, 2^124812019 is an apocalyptic number.

124812019 is a deficient number, since it is larger than the sum of its proper divisors (1).

124812019 is an equidigital number, since it uses as much as digits as its factorization.

124812019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 124812019 is about 11171.9299586061. The cubic root of 124812019 is about 499.7492329194.

The spelling of 124812019 in words is "one hundred twenty-four million, eight hundred twelve thousand, nineteen".