1254313563 has 4 divisors (see below), whose sum is σ = 1672418088. Its totient is φ = 836209040.

The previous prime is 1254313561. The next prime is 1254313589. The reversal of 1254313563 is 3653134521.

1254313563 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3653134521 = 3 ⋅1217711507.

It is a cyclic number.

It is not a de Polignac number, because 1254313563 - 2¹ = 1254313561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1254313561) 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, 209052258 + ... + 209052263.

It is an arithmetic number, because the mean of its divisors is an integer number (418104522).

Almost surely, 2^1254313563 is an apocalyptic number.

1254313563 is a deficient number, since it is larger than the sum of its proper divisors (418104525).

1254313563 is an equidigital number, since it uses as much as digits as its factorization.

1254313563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418104524.

The product of its digits is 32400, while the sum is 33.

The square root of 1254313563 is about 35416.2895148546. The cubic root of 1254313563 is about 1078.4550277218.

It can be divided in two parts, 12543 and 13563, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 1254313563 in words is "one billion, two hundred fifty-four million, three hundred thirteen thousand, five hundred sixty-three".