1545563 has 2 divisors, whose sum is σ = 1545564. Its totient is φ = 1545562.

The previous prime is 1545553. The next prime is 1545569. The reversal of 1545563 is 3655451.

It is a strong prime.

It is an emirp because it is prime and its reverse (3655451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1545563 - 2⁴ = 1545547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1545569) 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, 772781 + 772782.

It is an arithmetic number, because the mean of its divisors is an integer number (772782).

2^1545563 is an apocalyptic number.

1545563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545563 is an equidigital number, since it uses as much as digits as its factorization.

1545563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 29.

The square root of 1545563 is about 1243.2067406510. The cubic root of 1545563 is about 115.6189188913.

The spelling of 1545563 in words is "one million, five hundred forty-five thousand, five hundred sixty-three".