16517045 has 4 divisors (see below), whose sum is σ = 19820460. Its totient is φ = 13213632.

The previous prime is 16517029. The next prime is 16517057. The reversal of 16517045 is 54071561.

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 9156676 + 7360369 = 3026^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 16517045 - 2⁴ = 16517029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16516999 and 16517017.

It is a congruent number.

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, 1651700 + ... + 1651709.

It is an arithmetic number, because the mean of its divisors is an integer number (4955115).

Almost surely, 2^16517045 is an apocalyptic number.

It is an amenable number.

16517045 is a deficient number, since it is larger than the sum of its proper divisors (3303415).

16517045 is an equidigital number, since it uses as much as digits as its factorization.

16517045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303414.

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

The square root of 16517045 is about 4064.1167552126. The cubic root of 16517045 is about 254.6698020121.

The spelling of 16517045 in words is "sixteen million, five hundred seventeen thousand, forty-five".