16575145 has 8 divisors (see below), whose sum is σ = 19922760. Its totient is φ = 13238400.

The previous prime is 16575137. The next prime is 16575199. The reversal of 16575145 is 54157561.

It can be written as a sum of positive squares in 4 ways, for example, as 678976 + 15896169 = 824^2 + 3987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16575145 - 2³ = 16575137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16575145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141 + ... + 5869.

It is an arithmetic number, because the mean of its divisors is an integer number (2490345).

Almost surely, 2^16575145 is an apocalyptic number.

It is an amenable number.

16575145 is a deficient number, since it is larger than the sum of its proper divisors (3347615).

16575145 is an equidigital number, since it uses as much as digits as its factorization.

16575145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435.

The product of its digits is 21000, while the sum is 34.

The square root of 16575145 is about 4071.2584049652. The cubic root of 16575145 is about 254.9680595647.

The spelling of 16575145 in words is "sixteen million, five hundred seventy-five thousand, one hundred forty-five".