1154563 has 2 divisors, whose sum is σ = 1154564. Its totient is φ = 1154562.

The previous prime is 1154561. The next prime is 1154567. The reversal of 1154563 is 3654511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1154563 - 2¹ = 1154561 is a prime.

Together with 1154561, it forms a pair of twin primes.

1154563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1154561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577281 + 577282.

It is an arithmetic number, because the mean of its divisors is an integer number (577282).

2^1154563 is an apocalyptic number.

1154563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154563 is an equidigital number, since it uses as much as digits as its factorization.

1154563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 1154563 is about 1074.5059329757. The cubic root of 1154563 is about 104.9073407798.

The spelling of 1154563 in words is "one million, one hundred fifty-four thousand, five hundred sixty-three".