43112344157 has 2 divisors, whose sum is σ = 43112344158. Its totient is φ = 43112344156.

The previous prime is 43112344133. The next prime is 43112344159. The reversal of 43112344157 is 75144321134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39736036921 + 3376307236 = 199339^2 + 58106^2 .

It is a cyclic number.

It is not a de Polignac number, because 43112344157 - 2¹⁴ = 43112327773 is a prime.

It is a super-2 number, since 2×43112344157² (a number of 22 digits) contains 22 as substring.

Together with 43112344159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43112344159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21556172078 + 21556172079.

It is an arithmetic number, because the mean of its divisors is an integer number (21556172079).

Almost surely, 2^43112344157 is an apocalyptic number.

It is an amenable number.

43112344157 is a deficient number, since it is larger than the sum of its proper divisors (1).

43112344157 is an equidigital number, since it uses as much as digits as its factorization.

43112344157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The spelling of 43112344157 in words is "forty-three billion, one hundred twelve million, three hundred forty-four thousand, one hundred fifty-seven".