163242953 has 2 divisors, whose sum is σ = 163242954. Its totient is φ = 163242952.

The previous prime is 163242941. The next prime is 163242971. The reversal of 163242953 is 359242361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115949824 + 47293129 = 10768^2 + 6877^2 .

It is a cyclic number.

It is not a de Polignac number, because 163242953 - 2¹⁰ = 163241929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163242923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81621476 + 81621477.

It is an arithmetic number, because the mean of its divisors is an integer number (81621477).

Almost surely, 2^163242953 is an apocalyptic number.

It is an amenable number.

163242953 is a deficient number, since it is larger than the sum of its proper divisors (1).

163242953 is an equidigital number, since it uses as much as digits as its factorization.

163242953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 163242953 is about 12776.6565657843. The cubic root of 163242953 is about 546.5268220434.

The spelling of 163242953 in words is "one hundred sixty-three million, two hundred forty-two thousand, nine hundred fifty-three".