163244747 has 2 divisors, whose sum is σ = 163244748. Its totient is φ = 163244746.

The previous prime is 163244743. The next prime is 163244749. The reversal of 163244747 is 747442361.

It is a strong prime.

It is an emirp because it is prime and its reverse (747442361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163244747 - 2² = 163244743 is a prime.

Together with 163244749, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163244747.

It is not a weakly prime, because it can be changed into another prime (163244743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81622373 + 81622374.

It is an arithmetic number, because the mean of its divisors is an integer number (81622374).

Almost surely, 2^163244747 is an apocalyptic number.

163244747 is a deficient number, since it is larger than the sum of its proper divisors (1).

163244747 is an equidigital number, since it uses as much as digits as its factorization.

163244747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 38.

The square root of 163244747 is about 12776.7267717518. The cubic root of 163244747 is about 546.5288241013.

The spelling of 163244747 in words is "one hundred sixty-three million, two hundred forty-four thousand, seven hundred forty-seven".