433321139 has 2 divisors, whose sum is σ = 433321140. Its totient is φ = 433321138.

The previous prime is 433321067. The next prime is 433321151. The reversal of 433321139 is 931123334.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-433321139 is a prime.

It is a Sophie Germain prime.

It is equal to p_23014937 and since 433321139 and 23014937 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (433321199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216660569 + 216660570.

It is an arithmetic number, because the mean of its divisors is an integer number (216660570).

Almost surely, 2^433321139 is an apocalyptic number.

433321139 is a deficient number, since it is larger than the sum of its proper divisors (1).

433321139 is an equidigital number, since it uses as much as digits as its factorization.

433321139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 29.

The square root of 433321139 is about 20816.3670941882. The cubic root of 433321139 is about 756.7224618326.

The spelling of 433321139 in words is "four hundred thirty-three million, three hundred twenty-one thousand, one hundred thirty-nine".