182748221 has 2 divisors, whose sum is σ = 182748222. Its totient is φ = 182748220.

The previous prime is 182748149. The next prime is 182748263. The reversal of 182748221 is 122847281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141967225 + 40780996 = 11915^2 + 6386^2 .

It is a cyclic number.

It is not a de Polignac number, because 182748221 - 2¹⁰ = 182747197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182748121) 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 as a sum of consecutive naturals, namely, 91374110 + 91374111.

It is an arithmetic number, because the mean of its divisors is an integer number (91374111).

Almost surely, 2^182748221 is an apocalyptic number.

It is an amenable number.

182748221 is a deficient number, since it is larger than the sum of its proper divisors (1).

182748221 is an equidigital number, since it uses as much as digits as its factorization.

182748221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 35.

The square root of 182748221 is about 13518.4400357438. The cubic root of 182748221 is about 567.4806436372.

The spelling of 182748221 in words is "one hundred eighty-two million, seven hundred forty-eight thousand, two hundred twenty-one".