16126749 has 16 divisors (see below), whose sum is σ = 24931200. Its totient is φ = 10283328.

The previous prime is 16126739. The next prime is 16126751. The reversal of 16126749 is 94762161.

It is not a de Polignac number, because 16126749 - 2¹¹ = 16124701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16126739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12364 + ... + 13605.

It is an arithmetic number, because the mean of its divisors is an integer number (1558200).

Almost surely, 2^16126749 is an apocalyptic number.

It is an amenable number.

16126749 is a deficient number, since it is larger than the sum of its proper divisors (8804451).

16126749 is a wasteful number, since it uses less digits than its factorization.

16126749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26001 (or 25995 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 16126749 is about 4015.8123711150. The cubic root of 16126749 is about 252.6478511928.

It can be divided in two parts, 1 and 6126749, that added together give a triangular number (6126750 = T₃₅₀₀).

The spelling of 16126749 in words is "sixteen million, one hundred twenty-six thousand, seven hundred forty-nine".