510045946 has 4 divisors (see below), whose sum is σ = 765068922. Its totient is φ = 255022972.

The previous prime is 510045941. The next prime is 510045947. The reversal of 510045946 is 649540015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649540015 = 5 ⋅129908003.

It can be written as a sum of positive squares in only one way, i.e., 450925225 + 59120721 = 21235^2 + 7689^2 .

It is not an unprimeable number, because it can be changed into a prime (510045941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127511485 + ... + 127511488.

Almost surely, 2^510045946 is an apocalyptic number.

510045946 is a deficient number, since it is larger than the sum of its proper divisors (255022976).

510045946 is a wasteful number, since it uses less digits than its factorization.

510045946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255022975.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 510045946 is about 22584.1968199004. The cubic root of 510045946 is about 798.9809660551.

The spelling of 510045946 in words is "five hundred ten million, forty-five thousand, nine hundred forty-six".