1563229 has 2 divisors, whose sum is σ = 1563230. Its totient is φ = 1563228.

The previous prime is 1563227. The next prime is 1563239. The reversal of 1563229 is 9223651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1562500 + 729 = 1250^2 + 27^2 .

It is a cyclic number.

It is not a de Polignac number, because 1563229 - 2¹ = 1563227 is a prime.

Together with 1563227, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1563197 and 1563206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1563227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781614 + 781615.

It is an arithmetic number, because the mean of its divisors is an integer number (781615).

2^1563229 is an apocalyptic number.

It is an amenable number.

1563229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563229 is an equidigital number, since it uses as much as digits as its factorization.

1563229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 1563229 is about 1250.2915659957. The cubic root of 1563229 is about 116.0577645318.

The spelling of 1563229 in words is "one million, five hundred sixty-three thousand, two hundred twenty-nine".