16124939 has 4 divisors (see below), whose sum is σ = 16973640. Its totient is φ = 15276240.

The previous prime is 16124917. The next prime is 16124971. The reversal of 16124939 is 93942161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93942161 = 3779 ⋅24859.

It is a cyclic number.

It is not a de Polignac number, because 16124939 - 2¹⁶ = 16059403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16124899 and 16124908.

It is not an unprimeable number, because it can be changed into a prime (16124239) 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 in 3 ways as a sum of consecutive naturals, for example, 424322 + ... + 424359.

It is an arithmetic number, because the mean of its divisors is an integer number (4243410).

Almost surely, 2^16124939 is an apocalyptic number.

16124939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16124939 is a deficient number, since it is larger than the sum of its proper divisors (848701).

16124939 is an equidigital number, since it uses as much as digits as its factorization.

16124939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848700.

The product of its digits is 11664, while the sum is 35.

The square root of 16124939 is about 4015.5870056568. The cubic root of 16124939 is about 252.6383987872.

The spelling of 16124939 in words is "sixteen million, one hundred twenty-four thousand, nine hundred thirty-nine".