43233429137 has 2 divisors, whose sum is σ = 43233429138. Its totient is φ = 43233429136.

The previous prime is 43233429131. The next prime is 43233429149. The reversal of 43233429137 is 73192433234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30526728961 + 12706700176 = 174719^2 + 112724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43233429137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43233429094 and 43233429103.

It is not a weakly prime, because it can be changed into another prime (43233429131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21616714568 + 21616714569.

It is an arithmetic number, because the mean of its divisors is an integer number (21616714569).

Almost surely, 2^43233429137 is an apocalyptic number.

It is an amenable number.

43233429137 is a deficient number, since it is larger than the sum of its proper divisors (1).

43233429137 is an equidigital number, since it uses as much as digits as its factorization.

43233429137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 41.

The spelling of 43233429137 in words is "forty-three billion, two hundred thirty-three million, four hundred twenty-nine thousand, one hundred thirty-seven".