434581139 has 2 divisors, whose sum is σ = 434581140. Its totient is φ = 434581138.

The previous prime is 434581123. The next prime is 434581151. The reversal of 434581139 is 931185434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 434581139 - 2⁴ = 434581123 is a prime.

It is not a weakly prime, because it can be changed into another prime (434581339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217290569 + 217290570.

It is an arithmetic number, because the mean of its divisors is an integer number (217290570).

Almost surely, 2^434581139 is an apocalyptic number.

434581139 is a deficient number, since it is larger than the sum of its proper divisors (1).

434581139 is an equidigital number, since it uses as much as digits as its factorization.

434581139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 434581139 is about 20846.6097723347. The cubic root of 434581139 is about 757.4552114013.

The spelling of 434581139 in words is "four hundred thirty-four million, five hundred eighty-one thousand, one hundred thirty-nine".