16845545 has 24 divisors (see below), whose sum is σ = 21881664. Its totient is φ = 12424896.

The previous prime is 16845539. The next prime is 16845559. The reversal of 16845545 is 54554861.

It is a happy number.

It is not a de Polignac number, because 16845545 - 2⁶ = 16845481 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16845499 and 16845508.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157382 + ... + 157488.

It is an arithmetic number, because the mean of its divisors is an integer number (911736).

Almost surely, 2^16845545 is an apocalyptic number.

It is an amenable number.

16845545 is a deficient number, since it is larger than the sum of its proper divisors (5036119).

16845545 is a wasteful number, since it uses less digits than its factorization.

16845545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 172 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 16845545 is about 4104.3324670402. The cubic root of 16845545 is about 256.3470685199.

The spelling of 16845545 in words is "sixteen million, eight hundred forty-five thousand, five hundred forty-five".