519941 has 4 divisors (see below), whose sum is σ = 537900. Its totient is φ = 501984.

The previous prime is 519931. The next prime is 519943. The reversal of 519941 is 149915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149915 = 5 ⋅29983.

It can be written as a sum of positive squares in 2 ways, for example, as 279841 + 240100 = 529^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 519941 - 2¹⁸ = 257797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 17929 = 519941 / (5 + 1 + 9 + 9 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (519943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8936 + ... + 8993.

It is an arithmetic number, because the mean of its divisors is an integer number (134475).

2⁵¹⁹⁹⁴¹ is an apocalyptic number.

It is an amenable number.

519941 is a deficient number, since it is larger than the sum of its proper divisors (17959).

519941 is a wasteful number, since it uses less digits than its factorization.

519941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17958.

The product of its digits is 1620, while the sum is 29.

The square root of 519941 is about 721.0693447929. The cubic root of 519941 is about 80.4114737385.

The spelling of 519941 in words is "five hundred nineteen thousand, nine hundred forty-one".