434153749 has 2 divisors, whose sum is σ = 434153750. Its totient is φ = 434153748.

The previous prime is 434153719. The next prime is 434153767. The reversal of 434153749 is 947351434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383885649 + 50268100 = 19593^2 + 7090^2 .

It is a cyclic number.

It is not a de Polignac number, because 434153749 - 2⁵ = 434153717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434153719) 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, 217076874 + 217076875.

It is an arithmetic number, because the mean of its divisors is an integer number (217076875).

Almost surely, 2^434153749 is an apocalyptic number.

It is an amenable number.

434153749 is a deficient number, since it is larger than the sum of its proper divisors (1).

434153749 is an equidigital number, since it uses as much as digits as its factorization.

434153749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 434153749 is about 20836.3564233289. The cubic root of 434153749 is about 757.2068228299.

The spelling of 434153749 in words is "four hundred thirty-four million, one hundred fifty-three thousand, seven hundred forty-nine".