16677149 has 4 divisors (see below), whose sum is σ = 16705500. Its totient is φ = 16648800.

The previous prime is 16677131. The next prime is 16677169. The reversal of 16677149 is 94177661.

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 9424900 + 7252249 = 3070^2 + 2693^2 .

It is a cyclic number.

It is not a de Polignac number, because 16677149 - 2¹² = 16673053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16677169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13274 + ... + 14475.

It is an arithmetic number, because the mean of its divisors is an integer number (4176375).

Almost surely, 2^16677149 is an apocalyptic number.

It is an amenable number.

16677149 is a deficient number, since it is larger than the sum of its proper divisors (28351).

16677149 is an equidigital number, since it uses as much as digits as its factorization.

16677149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28350.

The product of its digits is 63504, while the sum is 41.

The square root of 16677149 is about 4083.7665212399. The cubic root of 16677149 is about 255.4900176476.

The spelling of 16677149 in words is "sixteen million, six hundred seventy-seven thousand, one hundred forty-nine".