16779145 has 8 divisors (see below), whose sum is σ = 20435904. Its totient is φ = 13222704.

The previous prime is 16779053. The next prime is 16779151. The reversal of 16779145 is 54197761.

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 16779145 - 2⁹ = 16778633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16779098 and 16779107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24709 + ... + 25378.

It is an arithmetic number, because the mean of its divisors is an integer number (2554488).

Almost surely, 2^16779145 is an apocalyptic number.

It is an amenable number.

16779145 is a deficient number, since it is larger than the sum of its proper divisors (3656759).

16779145 is an equidigital number, since it uses as much as digits as its factorization.

16779145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50159.

The product of its digits is 52920, while the sum is 40.

The square root of 16779145 is about 4096.2354668647. The cubic root of 16779145 is about 256.0098110254.

The spelling of 16779145 in words is "sixteen million, seven hundred seventy-nine thousand, one hundred forty-five".