513941 has 4 divisors (see below), whose sum is σ = 523692. Its totient is φ = 504192.

The previous prime is 513937. The next prime is 513943. The reversal of 513941 is 149315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149315 = 5 ⋅29863.

It can be written as a sum of positive squares in 2 ways, for example, as 207025 + 306916 = 455^2 + 554^2 .

It is a cyclic number.

It is not a de Polignac number, because 513941 - 2² = 513937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513943) 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 3 ways as a sum of consecutive naturals, for example, 4796 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (130923).

2⁵¹³⁹⁴¹ is an apocalyptic number.

It is an amenable number.

513941 is a deficient number, since it is larger than the sum of its proper divisors (9751).

513941 is an equidigital number, since it uses as much as digits as its factorization.

513941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9750.

The product of its digits is 540, while the sum is 23.

The square root of 513941 is about 716.8967847605. The cubic root of 513941 is about 80.1009662690.

The spelling of 513941 in words is "five hundred thirteen thousand, nine hundred forty-one".