182225355421 has 2 divisors, whose sum is σ = 182225355422. Its totient is φ = 182225355420.

The previous prime is 182225355413. The next prime is 182225355437. The reversal of 182225355421 is 124553522281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177418706521 + 4806648900 = 421211^2 + 69330^2 .

It is a cyclic number.

It is not a de Polignac number, because 182225355421 - 2³ = 182225355413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182225353421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91112677710 + 91112677711.

It is an arithmetic number, because the mean of its divisors is an integer number (91112677711).

Almost surely, 2^182225355421 is an apocalyptic number.

It is an amenable number.

182225355421 is a deficient number, since it is larger than the sum of its proper divisors (1).

182225355421 is an equidigital number, since it uses as much as digits as its factorization.

182225355421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192000, while the sum is 40.

The spelling of 182225355421 in words is "one hundred eighty-two billion, two hundred twenty-five million, three hundred fifty-five thousand, four hundred twenty-one".