124006399 has 16 divisors (see below), whose sum is σ = 138910464. Its totient is φ = 109748800.

The previous prime is 124006387. The next prime is 124006403. The reversal of 124006399 is 993600421.

It is a cyclic number.

It is not a de Polignac number, because 124006399 - 2⁹ = 124005887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124006319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63867 + ... + 65779.

It is an arithmetic number, because the mean of its divisors is an integer number (8681904).

Almost surely, 2^124006399 is an apocalyptic number.

124006399 is a deficient number, since it is larger than the sum of its proper divisors (14904065).

124006399 is a wasteful number, since it uses less digits than its factorization.

124006399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 124006399 is about 11135.8160455352. The cubic root of 124006399 is about 498.6716728858.

The spelling of 124006399 in words is "one hundred twenty-four million, six thousand, three hundred ninety-nine".