43142131525 has 6 divisors (see below), whose sum is σ = 53496243122. Its totient is φ = 34513705200.

The previous prime is 43142131507. The next prime is 43142131583. The reversal of 43142131525 is 52513124134.

43142131525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 660387204 + 42481744321 = 25698^2 + 206111^2 .

It is not a de Polignac number, because 43142131525 - 2¹⁵ = 43142098757 is a prime.

It is a super-2 number, since 2×43142131525² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 862842606 + ... + 862842655.

Almost surely, 2^43142131525 is an apocalyptic number.

It is an amenable number.

43142131525 is a deficient number, since it is larger than the sum of its proper divisors (10354111597).

43142131525 is a wasteful number, since it uses less digits than its factorization.

43142131525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725685271 (or 1725685266 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

Adding to 43142131525 its reverse (52513124134), we get a palindrome (95655255659).

The spelling of 43142131525 in words is "forty-three billion, one hundred forty-two million, one hundred thirty-one thousand, five hundred twenty-five".