1255319144140 has 48 divisors (see below), whose sum is σ = 2735455371264. Its totient is φ = 483385809600.

The previous prime is 1255319144069. The next prime is 1255319144161. The reversal of 1255319144140 is 414419135521.

It is a junction number, because it is equal to n+sod(n) for n = 1255319144093 and 1255319144102.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5181864 + ... + 5418703.

It is an arithmetic number, because the mean of its divisors is an integer number (56988653568).

Almost surely, 2^{1255319144140} is an apocalyptic number.

1255319144140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255319144140 is an abundant number, since it is smaller than the sum of its proper divisors (1480136227124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255319144140 is a wasteful number, since it uses less digits than its factorization.

1255319144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10600798 (or 10600796 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 1255319144140 in words is "one trillion, two hundred fifty-five billion, three hundred nineteen million, one hundred forty-four thousand, one hundred forty".