16700545 has 8 divisors (see below), whose sum is σ = 21219624. Its totient is φ = 12574464.

The previous prime is 16700543. The next prime is 16700573. The reversal of 16700545 is 54500761.

It can be written as a sum of positive squares in 4 ways, for example, as 3538161 + 13162384 = 1881^2 + 3628^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16700545 - 2¹ = 16700543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16700543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98154 + ... + 98323.

It is an arithmetic number, because the mean of its divisors is an integer number (2652453).

Almost surely, 2^16700545 is an apocalyptic number.

It is an amenable number.

16700545 is a deficient number, since it is larger than the sum of its proper divisors (4519079).

16700545 is a wasteful number, since it uses less digits than its factorization.

16700545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196499.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 16700545 is about 4086.6300297433. The cubic root of 16700545 is about 255.6094355693.

The spelling of 16700545 in words is "sixteen million, seven hundred thousand, five hundred forty-five".