43161250431 has 16 divisors (see below), whose sum is σ = 63974328320. Its totient is φ = 25703969760.

The previous prime is 43161250393. The next prime is 43161250439. The reversal of 43161250431 is 13405216134.

It is not a de Polignac number, because 43161250431 - 2⁷ = 43161250303 is a prime.

It is a super-2 number, since 2×43161250431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43161250439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17848771 + ... + 17851188.

It is an arithmetic number, because the mean of its divisors is an integer number (3998395520).

Almost surely, 2^43161250431 is an apocalyptic number.

43161250431 is a deficient number, since it is larger than the sum of its proper divisors (20813077889).

43161250431 is a wasteful number, since it uses less digits than its factorization.

43161250431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35700006.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 43161250431 its reverse (13405216134), we get a palindrome (56566466565).

The spelling of 43161250431 in words is "forty-three billion, one hundred sixty-one million, two hundred fifty thousand, four hundred thirty-one".