505411147 has 4 divisors (see below), whose sum is σ = 505622160. Its totient is φ = 505200136.

The previous prime is 505411133. The next prime is 505411189. The reversal of 505411147 is 741114505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741114505 = 5 ⋅148222901.

It is a cyclic number.

It is not a de Polignac number, because 505411147 - 2⁷ = 505411019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505411447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101872 + ... + 106717.

It is an arithmetic number, because the mean of its divisors is an integer number (126405540).

Almost surely, 2^505411147 is an apocalyptic number.

505411147 is a deficient number, since it is larger than the sum of its proper divisors (211013).

505411147 is a wasteful number, since it uses less digits than its factorization.

505411147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211012.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 505411147 is about 22481.3510937399. The cubic root of 505411147 is about 796.5534789174.

The spelling of 505411147 in words is "five hundred five million, four hundred eleven thousand, one hundred forty-seven".