16445147 has 4 divisors (see below), whose sum is σ = 16453416. Its totient is φ = 16436880.

The previous prime is 16445119. The next prime is 16445167. The reversal of 16445147 is 74154461.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16445147 - 2¹⁰ = 16444123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16445167) 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, 863 + ... + 5799.

It is an arithmetic number, because the mean of its divisors is an integer number (4113354).

Almost surely, 2^16445147 is an apocalyptic number.

16445147 is a deficient number, since it is larger than the sum of its proper divisors (8269).

16445147 is an equidigital number, since it uses as much as digits as its factorization.

16445147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268.

The product of its digits is 13440, while the sum is 32.

The square root of 16445147 is about 4055.2616438400. The cubic root of 16445147 is about 254.2997422390.

The spelling of 16445147 in words is "sixteen million, four hundred forty-five thousand, one hundred forty-seven".