510946 has 4 divisors (see below), whose sum is σ = 766422. Its totient is φ = 255472.

The previous prime is 510943. The next prime is 510989. The reversal of 510946 is 649015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649015 = 5 ⋅129803.

It can be written as a sum of positive squares in only one way, i.e., 346921 + 164025 = 589^2 + 405^2 .

It is a super-2 number, since 2×510946² = 522131629832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 510946.

It is not an unprimeable number, because it can be changed into a prime (510941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127735 + ... + 127738.

2⁵¹⁰⁹⁴⁶ is an apocalyptic number.

510946 is a deficient number, since it is larger than the sum of its proper divisors (255476).

510946 is a wasteful number, since it uses less digits than its factorization.

510946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255475.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 510946 is about 714.8048684781. The cubic root of 510946 is about 79.9450664541.

The spelling of 510946 in words is "five hundred ten thousand, nine hundred forty-six".