1012563 has 6 divisors (see below), whose sum is σ = 1462604. Its totient is φ = 675036.

The previous prime is 1012559. The next prime is 1012573. The reversal of 1012563 is 3652101.

1012563 is a `hidden beast` number, since 101 + 2 + 563 = 666.

It is not a de Polignac number, because 1012563 - 2² = 1012559 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012513) 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 in 5 ways as a sum of consecutive naturals, for example, 56245 + ... + 56262.

2^1012563 is an apocalyptic number.

1012563 is a deficient number, since it is larger than the sum of its proper divisors (450041).

1012563 is a wasteful number, since it uses less digits than its factorization.

1012563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112513 (or 112510 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1012563 is about 1006.2618943396. The cubic root of 1012563 is about 100.4170251494.

Adding to 1012563 its reverse (3652101), we get a palindrome (4664664).

The spelling of 1012563 in words is "one million, twelve thousand, five hundred sixty-three".