16957147 has 4 divisors (see below), whose sum is σ = 16965936. Its totient is φ = 16948360.

The previous prime is 16957133. The next prime is 16957151. The reversal of 16957147 is 74175961.

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 16957147 - 2⁷ = 16957019 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16957247) 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, 103 + ... + 5824.

It is an arithmetic number, because the mean of its divisors is an integer number (4241484).

Almost surely, 2^16957147 is an apocalyptic number.

16957147 is a deficient number, since it is larger than the sum of its proper divisors (8789).

16957147 is an equidigital number, since it uses as much as digits as its factorization.

16957147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788.

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

The square root of 16957147 is about 4117.9056570058. The cubic root of 16957147 is about 256.9119240753.

The spelling of 16957147 in words is "sixteen million, nine hundred fifty-seven thousand, one hundred forty-seven".