43436140172101 has 4 divisors (see below), whose sum is σ = 44933938109100. Its totient is φ = 41938342235104.

The previous prime is 43436140172077. The next prime is 43436140172147. The reversal of 43436140172101 is 10127104163434.

It is a Cunningham number, because it is equal to 6590610²+1.

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 22776851700100 + 20659288472001 = 4772510^2 + 4545249^2 .

It is a cyclic number.

It is not a de Polignac number, because 43436140172101 - 2⁵ = 43436140172069 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 (43436140172801) 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, 748898968456 + ... + 748898968513.

It is an arithmetic number, because the mean of its divisors is an integer number (11233484527275).

Almost surely, 2^{43436140172101} is an apocalyptic number.

It is an amenable number.

43436140172101 is a deficient number, since it is larger than the sum of its proper divisors (1497797936999).

43436140172101 is a wasteful number, since it uses less digits than its factorization.

43436140172101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497797936998.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 43436140172101 in words is "forty-three trillion, four hundred thirty-six billion, one hundred forty million, one hundred seventy-two thousand, one hundred one".