16749127 has 4 divisors (see below), whose sum is σ = 17630680. Its totient is φ = 15867576.

The previous prime is 16749121. The next prime is 16749157. The reversal of 16749127 is 72194761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72194761 = 151 ⋅478111.

It is a cyclic number.

It is not a de Polignac number, because 16749127 - 2¹⁹ = 16224839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16749121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440748 + ... + 440785.

It is an arithmetic number, because the mean of its divisors is an integer number (4407670).

Almost surely, 2^16749127 is an apocalyptic number.

16749127 is a deficient number, since it is larger than the sum of its proper divisors (881553).

16749127 is an equidigital number, since it uses as much as digits as its factorization.

16749127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881552.

The product of its digits is 21168, while the sum is 37.

The square root of 16749127 is about 4092.5697306216. The cubic root of 16749127 is about 255.8570521522.

It can be divided in two parts, 1674 and 9127, that added together give a palindrome (10801).

The spelling of 16749127 in words is "sixteen million, seven hundred forty-nine thousand, one hundred twenty-seven".