16541947 has 2 divisors, whose sum is σ = 16541948. Its totient is φ = 16541946.

The previous prime is 16541939. The next prime is 16541963. The reversal of 16541947 is 74914561.

It is a weak prime.

It is an emirp because it is prime and its reverse (74914561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16541947 - 2³ = 16541939 is a prime.

It is not a weakly prime, because it can be changed into another prime (16541747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270973 + 8270974.

It is an arithmetic number, because the mean of its divisors is an integer number (8270974).

Almost surely, 2^16541947 is an apocalyptic number.

16541947 is a deficient number, since it is larger than the sum of its proper divisors (1).

16541947 is an equidigital number, since it uses as much as digits as its factorization.

16541947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 16541947 is about 4067.1792436528. The cubic root of 16541947 is about 254.7977224523.

The spelling of 16541947 in words is "sixteen million, five hundred forty-one thousand, nine hundred forty-seven".