203228629 has 2 divisors, whose sum is σ = 203228630. Its totient is φ = 203228628.

The previous prime is 203228587. The next prime is 203228651. The reversal of 203228629 is 926822302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162562500 + 40666129 = 12750^2 + 6377^2 .

It is a cyclic number.

It is not a de Polignac number, because 203228629 - 2¹¹ = 203226581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203228594 and 203228603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203228689) 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, 101614314 + 101614315.

It is an arithmetic number, because the mean of its divisors is an integer number (101614315).

Almost surely, 2^203228629 is an apocalyptic number.

It is an amenable number.

203228629 is a deficient number, since it is larger than the sum of its proper divisors (1).

203228629 is an equidigital number, since it uses as much as digits as its factorization.

203228629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 203228629 is about 14255.8278959870. The cubic root of 203228629 is about 587.9336206632.

The spelling of 203228629 in words is "two hundred three million, two hundred twenty-eight thousand, six hundred twenty-nine".