1263474853 has 8 divisors (see below), whose sum is σ = 1306337400. Its totient is φ = 1221071040.

The previous prime is 1263474841. The next prime is 1263474869. The reversal of 1263474853 is 3584743621.

It can be written as a sum of positive squares in 4 ways, for example, as 407151684 + 856323169 = 20178^2 + 29263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1263474853 - 2¹³ = 1263466661 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 (1263474353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109078 + ... + 120103.

It is an arithmetic number, because the mean of its divisors is an integer number (163292175).

Almost surely, 2^1263474853 is an apocalyptic number.

It is an amenable number.

1263474853 is a deficient number, since it is larger than the sum of its proper divisors (42862547).

1263474853 is a wasteful number, since it uses less digits than its factorization.

1263474853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229367.

The product of its digits is 483840, while the sum is 43.

The square root of 1263474853 is about 35545.3914453055. The cubic root of 1263474853 is about 1081.0742777106.

The spelling of 1263474853 in words is "one billion, two hundred sixty-three million, four hundred seventy-four thousand, eight hundred fifty-three".