43540130054513 has 4 divisors (see below), whose sum is σ = 44361641942388. Its totient is φ = 42718618166640.

The previous prime is 43540130054471. The next prime is 43540130054539. The reversal of 43540130054513 is 31545003104534.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26748632360464 + 16791497694049 = 5171908^2 + 4097743^2 .

It is a cyclic number.

It is not a de Polignac number, because 43540130054513 - 2²⁸ = 43539861619057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43540130059513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410755943858 + ... + 410755943963.

It is an arithmetic number, because the mean of its divisors is an integer number (11090410485597).

Almost surely, 2^{43540130054513} is an apocalyptic number.

It is an amenable number.

43540130054513 is a deficient number, since it is larger than the sum of its proper divisors (821511887875).

43540130054513 is an equidigital number, since it uses as much as digits as its factorization.

43540130054513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821511887874.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 43540130054513 in words is "forty-three trillion, five hundred forty billion, one hundred thirty million, fifty-four thousand, five hundred thirteen".