16750145 has 4 divisors (see below), whose sum is σ = 20100180. Its totient is φ = 13400112.

The previous prime is 16750109. The next prime is 16750163. The reversal of 16750145 is 54105761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12559936 + 4190209 = 3544^2 + 2047^2 .

It is a cyclic number.

It is not a de Polignac number, because 16750145 - 2¹⁰ = 16749121 is a prime.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675010 + ... + 1675019.

It is an arithmetic number, because the mean of its divisors is an integer number (5025045).

Almost surely, 2^16750145 is an apocalyptic number.

It is an amenable number.

16750145 is a deficient number, since it is larger than the sum of its proper divisors (3350035).

16750145 is an equidigital number, since it uses as much as digits as its factorization.

16750145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350034.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 16750145 is about 4092.6941004673. The cubic root of 16750145 is about 255.8622356503.

The spelling of 16750145 in words is "sixteen million, seven hundred fifty thousand, one hundred forty-five".