43147236229 has 2 divisors, whose sum is σ = 43147236230. Its totient is φ = 43147236228.

The previous prime is 43147236163. The next prime is 43147236247. The reversal of 43147236229 is 92263274134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41707033729 + 1440202500 = 204223^2 + 37950^2 .

It is a cyclic number.

It is not a de Polignac number, because 43147236229 - 2²³ = 43138847621 is a prime.

It is a super-2 number, since 2×43147236229² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43147236289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21573618114 + 21573618115.

It is an arithmetic number, because the mean of its divisors is an integer number (21573618115).

Almost surely, 2^43147236229 is an apocalyptic number.

It is an amenable number.

43147236229 is a deficient number, since it is larger than the sum of its proper divisors (1).

43147236229 is an equidigital number, since it uses as much as digits as its factorization.

43147236229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 43.

The spelling of 43147236229 in words is "forty-three billion, one hundred forty-seven million, two hundred thirty-six thousand, two hundred twenty-nine".