1254563023 has 18 divisors (see below), whose sum is σ = 1474164096. Its totient is φ = 1064496384.

The previous prime is 1254563021. The next prime is 1254563039. The reversal of 1254563023 is 3203654521.

It is a happy number.

It is not a de Polignac number, because 1254563023 - 2¹ = 1254563021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254563021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2793903 + ... + 2794351.

Almost surely, 2^1254563023 is an apocalyptic number.

1254563023 is a deficient number, since it is larger than the sum of its proper divisors (219601073).

1254563023 is an frugal number, since it uses more digits than its factorization.

1254563023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1254563023 is about 35419.8111655045. The cubic root of 1254563023 is about 1078.5265179685.

The spelling of 1254563023 in words is "one billion, two hundred fifty-four million, five hundred sixty-three thousand, twenty-three".