243225677 has 2 divisors, whose sum is σ = 243225678. Its totient is φ = 243225676.

The previous prime is 243225649. The next prime is 243225739. The reversal of 243225677 is 776522342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156475081 + 86750596 = 12509^2 + 9314^2 .

It is a cyclic number.

It is not a de Polignac number, because 243225677 - 2⁸ = 243225421 is a prime.

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 243225677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243225617) 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, 121612838 + 121612839.

It is an arithmetic number, because the mean of its divisors is an integer number (121612839).

Almost surely, 2^243225677 is an apocalyptic number.

It is an amenable number.

243225677 is a deficient number, since it is larger than the sum of its proper divisors (1).

243225677 is an equidigital number, since it uses as much as digits as its factorization.

243225677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 38.

The square root of 243225677 is about 15595.6941814079. The cubic root of 243225677 is about 624.2182670106.

The spelling of 243225677 in words is "two hundred forty-three million, two hundred twenty-five thousand, six hundred seventy-seven".