505149 has 8 divisors (see below), whose sum is σ = 702912. Its totient is φ = 322080.

The previous prime is 505139. The next prime is 505157. The reversal of 505149 is 941505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505149 - 2⁵ = 505117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505129) 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 in 7 ways as a sum of consecutive naturals, for example, 3592 + ... + 3729.

It is an arithmetic number, because the mean of its divisors is an integer number (87864).

2⁵⁰⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

505149 is a deficient number, since it is larger than the sum of its proper divisors (197763).

505149 is a wasteful number, since it uses less digits than its factorization.

505149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7347.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 505149 is about 710.7383484799. The cubic root of 505149 is about 79.6415736132.

The spelling of 505149 in words is "five hundred five thousand, one hundred forty-nine".