434223137 has 2 divisors, whose sum is σ = 434223138. Its totient is φ = 434223136.

The previous prime is 434223133. The next prime is 434223143. The reversal of 434223137 is 731322434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429276961 + 4946176 = 20719^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 434223137 - 2² = 434223133 is a prime.

It is a super-2 number, since 2×434223137² = 377099465412241538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (434223133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217111568 + 217111569.

It is an arithmetic number, because the mean of its divisors is an integer number (217111569).

Almost surely, 2^434223137 is an apocalyptic number.

It is an amenable number.

434223137 is a deficient number, since it is larger than the sum of its proper divisors (1).

434223137 is an equidigital number, since it uses as much as digits as its factorization.

434223137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 29.

The square root of 434223137 is about 20838.0214271893. The cubic root of 434223137 is about 757.2471605124.

The spelling of 434223137 in words is "four hundred thirty-four million, two hundred twenty-three thousand, one hundred thirty-seven".