1243948655 has 8 divisors (see below), whose sum is σ = 1493931600. Its totient is φ = 994363456.

The previous prime is 1243948627. The next prime is 1243948679. The reversal of 1243948655 is 5568493421.

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

It is a cyclic number.

It is not a de Polignac number, because 1243948655 - 2¹⁰ = 1243947631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92510 + ... + 105099.

It is an arithmetic number, because the mean of its divisors is an integer number (186741450).

Almost surely, 2^1243948655 is an apocalyptic number.

1243948655 is a deficient number, since it is larger than the sum of its proper divisors (249982945).

1243948655 is a wasteful number, since it uses less digits than its factorization.

1243948655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198873.

The product of its digits is 1036800, while the sum is 47.

The square root of 1243948655 is about 35269.6562926264. The cubic root of 1243948655 is about 1075.4762353594.

The spelling of 1243948655 in words is "one billion, two hundred forty-three million, nine hundred forty-eight thousand, six hundred fifty-five".