511274 has 4 divisors (see below), whose sum is σ = 766914. Its totient is φ = 255636.

The previous prime is 511261. The next prime is 511279. The reversal of 511274 is 472115.

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

It can be written as a sum of positive squares in only one way, i.e., 511225 + 49 = 715^2 + 7^2 .

It is a super-2 number, since 2×511274² = 522802206152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127817 + ... + 127820.

2⁵¹¹²⁷⁴ is an apocalyptic number.

511274 is a deficient number, since it is larger than the sum of its proper divisors (255640).

511274 is a wasteful number, since it uses less digits than its factorization.

511274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255639.

The product of its digits is 280, while the sum is 20.

The square root of 511274 is about 715.0342649132. The cubic root of 511274 is about 79.9621696136.

Adding to 511274 its reverse (472115), we get a palindrome (983389).

The spelling of 511274 in words is "five hundred eleven thousand, two hundred seventy-four".