510949 has 4 divisors (see below), whose sum is σ = 516780. Its totient is φ = 505120.

The previous prime is 510943. The next prime is 510989. The reversal of 510949 is 949015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172225 + 338724 = 415^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 510949 - 2³ = 510941 is a prime.

It is a super-2 number, since 2×510949² = 522137761202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510941) 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, 2782 + ... + 2959.

It is an arithmetic number, because the mean of its divisors is an integer number (129195).

2⁵¹⁰⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

510949 is a deficient number, since it is larger than the sum of its proper divisors (5831).

510949 is an equidigital number, since it uses as much as digits as its factorization.

510949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 510949 is about 714.8069669498. The cubic root of 510949 is about 79.9452229186.

It can be divided in two parts, 5 and 10949, that multiplied together give a palindrome (54745).

The spelling of 510949 in words is "five hundred ten thousand, nine hundred forty-nine".