434312155 has 4 divisors (see below), whose sum is σ = 521174592. Its totient is φ = 347449720.

The previous prime is 434312147. The next prime is 434312161. The reversal of 434312155 is 551213434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551213434 = 2 ⋅275606717.

It is not a de Polignac number, because 434312155 - 2³ = 434312147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 43431211 + ... + 43431220.

It is an arithmetic number, because the mean of its divisors is an integer number (130293648).

Almost surely, 2^434312155 is an apocalyptic number.

434312155 is a deficient number, since it is larger than the sum of its proper divisors (86862437).

434312155 is an equidigital number, since it uses as much as digits as its factorization.

434312155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86862436.

The product of its digits is 7200, while the sum is 28.

The square root of 434312155 is about 20840.1572690803. The cubic root of 434312155 is about 757.2989035112.

Adding to 434312155 its reverse (551213434), we get a palindrome (985525589).

The spelling of 434312155 in words is "four hundred thirty-four million, three hundred twelve thousand, one hundred fifty-five".