1142741905812 has 36 divisors (see below), whose sum is σ = 3110797411540. Its totient is φ = 351612893952.

The previous prime is 1142741905783. The next prime is 1142741905831. The reversal of 1142741905812 is 2185091472411.

It is a happy number.

1142741905812 is a `hidden beast` number, since 1 + 1 + 4 + 27 + 41 + 9 + 0 + 581 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 554152203396 + 588589702416 = 744414^2 + 767196^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1220877637 + ... + 1220878572.

Almost surely, 2^{1142741905812} is an apocalyptic number.

1142741905812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142741905812 is an abundant number, since it is smaller than the sum of its proper divisors (1968055505728).

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

1142741905812 is a wasteful number, since it uses less digits than its factorization.

1142741905812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441756232 (or 2441756227 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 1142741905812 in words is "one trillion, one hundred forty-two billion, seven hundred forty-one million, nine hundred five thousand, eight hundred twelve".