1254563 has 4 divisors (see below), whose sum is σ = 1278288. Its totient is φ = 1230840.

The previous prime is 1254557. The next prime is 1254577. The reversal of 1254563 is 3654521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3654521 = 13 ⋅281117.

It is a cyclic number.

It is not a de Polignac number, because 1254563 - 2¹⁴ = 1238179 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 (1254503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11783 + ... + 11888.

It is an arithmetic number, because the mean of its divisors is an integer number (319572).

2^1254563 is an apocalyptic number.

1254563 is a deficient number, since it is larger than the sum of its proper divisors (23725).

1254563 is an equidigital number, since it uses as much as digits as its factorization.

1254563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23724.

The product of its digits is 3600, while the sum is 26.

The square root of 1254563 is about 1120.0727654934. The cubic root of 1254563 is about 107.8526511378.

The spelling of 1254563 in words is "one million, two hundred fifty-four thousand, five hundred sixty-three".