163242733 has 2 divisors, whose sum is σ = 163242734. Its totient is φ = 163242732.

The previous prime is 163242727. The next prime is 163242757. The reversal of 163242733 is 337242361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141086884 + 22155849 = 11878^2 + 4707^2 .

It is a cyclic number.

It is not a de Polignac number, because 163242733 - 2⁹ = 163242221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163242695 and 163242704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163242713) 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, 81621366 + 81621367.

It is an arithmetic number, because the mean of its divisors is an integer number (81621367).

Almost surely, 2^163242733 is an apocalyptic number.

It is an amenable number.

163242733 is a deficient number, since it is larger than the sum of its proper divisors (1).

163242733 is an equidigital number, since it uses as much as digits as its factorization.

163242733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 31.

The square root of 163242733 is about 12776.6479563303. The cubic root of 163242733 is about 546.5265765280.

The spelling of 163242733 in words is "one hundred sixty-three million, two hundred forty-two thousand, seven hundred thirty-three".