43436140172147 has 2 divisors, whose sum is σ = 43436140172148. Its totient is φ = 43436140172146.

The previous prime is 43436140172077. The next prime is 43436140172197. The reversal of 43436140172147 is 74127104163434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43436140172147 - 2²⁴ = 43436123394931 is a prime.

It is not a weakly prime, because it can be changed into another prime (43436140172197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21718070086073 + 21718070086074.

It is an arithmetic number, because the mean of its divisors is an integer number (21718070086074).

Almost surely, 2^{43436140172147} is an apocalyptic number.

43436140172147 is a deficient number, since it is larger than the sum of its proper divisors (1).

43436140172147 is an equidigital number, since it uses as much as digits as its factorization.

43436140172147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 47.

Subtracting from 43436140172147 its sum of digits (47), we obtain a square (43436140172100 = 6590610²).

The spelling of 43436140172147 in words is "forty-three trillion, four hundred thirty-six billion, one hundred forty million, one hundred seventy-two thousand, one hundred forty-seven".