43013135540 has 12 divisors (see below), whose sum is σ = 90327584676. Its totient is φ = 17205254208.

The previous prime is 43013135533. The next prime is 43013135569. The reversal of 43013135540 is 4553131034.

It can be written as a sum of positive squares in 2 ways, for example, as 5236548496 + 37776587044 = 72364^2 + 194362^2 .

It is a super-2 number, since 2×43013135540² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075328369 + ... + 1075328408.

It is an arithmetic number, because the mean of its divisors is an integer number (7527298723).

Almost surely, 2^43013135540 is an apocalyptic number.

It is an amenable number.

43013135540 is an abundant number, since it is smaller than the sum of its proper divisors (47314449136).

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

43013135540 is a wasteful number, since it uses less digits than its factorization.

43013135540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150656786 (or 2150656784 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 43013135540 its reverse (4553131034), we get a palindrome (47566266574).

The spelling of 43013135540 in words is "forty-three billion, thirteen million, one hundred thirty-five thousand, five hundred forty".