163351047 has 4 divisors (see below), whose sum is σ = 217801400. Its totient is φ = 108900696.

The previous prime is 163351043. The next prime is 163351063. The reversal of 163351047 is 740153361.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 163351047 - 2² = 163351043 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 (163351043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27225172 + ... + 27225177.

It is an arithmetic number, because the mean of its divisors is an integer number (54450350).

Almost surely, 2^163351047 is an apocalyptic number.

163351047 is a deficient number, since it is larger than the sum of its proper divisors (54450353).

163351047 is an equidigital number, since it uses as much as digits as its factorization.

163351047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54450352.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 163351047 is about 12780.8860021518. The cubic root of 163351047 is about 546.6474259951.

The spelling of 163351047 in words is "one hundred sixty-three million, three hundred fifty-one thousand, forty-seven".