43430134453 has 4 divisors (see below), whose sum is σ = 43586922220. Its totient is φ = 43273346688.

The previous prime is 43430134441. The next prime is 43430134541. The reversal of 43430134453 is 35443103434.

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 5573816964 + 37856317489 = 74658^2 + 194567^2 .

It is a cyclic number.

It is not a de Polignac number, because 43430134453 - 2⁵ = 43430134421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43430134403) 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, 78393468 + ... + 78394021.

It is an arithmetic number, because the mean of its divisors is an integer number (10896730555).

Almost surely, 2^43430134453 is an apocalyptic number.

It is an amenable number.

43430134453 is a deficient number, since it is larger than the sum of its proper divisors (156787767).

43430134453 is a wasteful number, since it uses less digits than its factorization.

43430134453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156787766.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 43430134453 its reverse (35443103434), we get a palindrome (78873237887).

The spelling of 43430134453 in words is "forty-three billion, four hundred thirty million, one hundred thirty-four thousand, four hundred fifty-three".