1241956259209 has 8 divisors (see below), whose sum is σ = 1260294543360. Its totient is φ = 1223641473600.

The previous prime is 1241956259179. The next prime is 1241956259281. The reversal of 1241956259209 is 9029526591421.

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 1241956259209 - 2¹¹ = 1241956257161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241956259209.

It is not an unprimeable number, because it can be changed into a prime (1241956269209) 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 7 ways as a sum of consecutive naturals, for example, 5768137 + ... + 5979574.

It is an arithmetic number, because the mean of its divisors is an integer number (157536817920).

Almost surely, 2^{1241956259209} is an apocalyptic number.

It is an amenable number.

1241956259209 is a deficient number, since it is larger than the sum of its proper divisors (18338284151).

1241956259209 is a wasteful number, since it uses less digits than its factorization.

1241956259209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11749271.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 1241956259209 in words is "one trillion, two hundred forty-one billion, nine hundred fifty-six million, two hundred fifty-nine thousand, two hundred nine".