131783044709 has 6 divisors (see below), whose sum is σ = 136329309990. Its totient is φ = 127236914280.

The previous prime is 131783044703. The next prime is 131783044711. The reversal of 131783044709 is 907440387131.

It can be written as a sum of positive squares in only one way, i.e., 113606073025 + 18176971684 = 337055^2 + 134822^2 .

It is not a de Polignac number, because 131783044709 - 2⁸ = 131783044453 is a prime.

It is a super-3 number, since 3×131783044709³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131783044703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1921214 + ... + 1988624.

It is an arithmetic number, because the mean of its divisors is an integer number (22721551665).

Almost surely, 2^131783044709 is an apocalyptic number.

It is an amenable number.

131783044709 is a deficient number, since it is larger than the sum of its proper divisors (4546265281).

131783044709 is an frugal number, since it uses more digits than its factorization.

131783044709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134851 (or 67440 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 131783044709 in words is "one hundred thirty-one billion, seven hundred eighty-three million, forty-four thousand, seven hundred nine".