1240534555013 has 8 divisors (see below), whose sum is σ = 1358603685600. Its totient is φ = 1125700195248.

The previous prime is 1240534554997. The next prime is 1240534555061. The reversal of 1240534555013 is 3105554350421.

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 1240534555013 - 2⁴ = 1240534554997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240534555093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808691903 + ... + 808693436.

It is an arithmetic number, because the mean of its divisors is an integer number (169825460700).

Almost surely, 2^{1240534555013} is an apocalyptic number.

1240534555013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1240534555013 is a deficient number, since it is larger than the sum of its proper divisors (118069130587).

1240534555013 is a wasteful number, since it uses less digits than its factorization.

1240534555013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617385411.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 1240534555013 in words is "one trillion, two hundred forty billion, five hundred thirty-four million, five hundred fifty-five thousand, thirteen".