16124969 has 6 divisors (see below), whose sum is σ = 18757674. Its totient is φ = 13821360.

The previous prime is 16124917. The next prime is 16124971. The reversal of 16124969 is 96942161.

It can be written as a sum of positive squares in only one way, i.e., 8479744 + 7645225 = 2912^2 + 2765^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16124969 is a prime.

It is a super-2 number, since 2×16124969² = 520029250501922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16123969) 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 5 ways as a sum of consecutive naturals, for example, 164492 + ... + 164589.

It is an arithmetic number, because the mean of its divisors is an integer number (3126279).

Almost surely, 2^16124969 is an apocalyptic number.

It is an amenable number.

16124969 is a deficient number, since it is larger than the sum of its proper divisors (2632705).

16124969 is an equidigital number, since it uses as much as digits as its factorization.

16124969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329095 (or 329088 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 16124969 is about 4015.5907410990. The cubic root of 16124969 is about 252.6385554626.

The spelling of 16124969 in words is "sixteen million, one hundred twenty-four thousand, nine hundred sixty-nine".