42433129 has 2 divisors, whose sum is σ = 42433130. Its totient is φ = 42433128.

The previous prime is 42433103. The next prime is 42433159. The reversal of 42433129 is 92133424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28355625 + 14077504 = 5325^2 + 3752^2 .

It is a cyclic number.

It is not a de Polignac number, because 42433129 - 2¹⁵ = 42400361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42433097 and 42433106.

It is not a weakly prime, because it can be changed into another prime (42433159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21216564 + 21216565.

It is an arithmetic number, because the mean of its divisors is an integer number (21216565).

Almost surely, 2^42433129 is an apocalyptic number.

It is an amenable number.

42433129 is a deficient number, since it is larger than the sum of its proper divisors (1).

42433129 is an equidigital number, since it uses as much as digits as its factorization.

42433129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 42433129 is about 6514.0716145894. The cubic root of 42433129 is about 348.7934755648.

The spelling of 42433129 in words is "forty-two million, four hundred thirty-three thousand, one hundred twenty-nine".