16272145 has 12 divisors (see below), whose sum is σ = 20744604. Its totient is φ = 12250880.

The previous prime is 16272133. The next prime is 16272149. The reversal of 16272145 is 54127261.

It can be written as a sum of positive squares in 6 ways, for example, as 4739329 + 11532816 = 2177^2 + 3396^2 .

It is not a de Polignac number, because 16272145 - 2¹³ = 16263953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16272149) 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 11 ways as a sum of consecutive naturals, for example, 4186 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (1728717).

Almost surely, 2^16272145 is an apocalyptic number.

It is an amenable number.

16272145 is a deficient number, since it is larger than the sum of its proper divisors (4472459).

16272145 is a wasteful number, since it uses less digits than its factorization.

16272145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11300 (or 11283 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 16272145 is about 4033.8746881875. The cubic root of 16272145 is about 253.4048572669.

The spelling of 16272145 in words is "sixteen million, two hundred seventy-two thousand, one hundred forty-five".