16172049 has 32 divisors (see below), whose sum is σ = 24136704. Its totient is φ = 9584640.

The previous prime is 16172047. The next prime is 16172069. The reversal of 16172049 is 94027161.

It is a happy number.

It is not a de Polignac number, because 16172049 - 2¹ = 16172047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16172041) 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 31 ways as a sum of consecutive naturals, for example, 83697 + ... + 83889.

It is an arithmetic number, because the mean of its divisors is an integer number (754272).

Almost surely, 2^16172049 is an apocalyptic number.

It is an amenable number.

16172049 is a deficient number, since it is larger than the sum of its proper divisors (7964655).

16172049 is a wasteful number, since it uses less digits than its factorization.

16172049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 16172049 is about 4021.4486195897. The cubic root of 16172049 is about 252.8841924433.

The spelling of 16172049 in words is "sixteen million, one hundred seventy-two thousand, forty-nine".