511213474 has 8 divisors (see below), whose sum is σ = 774725868. Its totient is φ = 252971520.

The previous prime is 511213471. The next prime is 511213523. The reversal of 511213474 is 474312115.

It can be written as a sum of positive squares in 2 ways, for example, as 475894225 + 35319249 = 21815^2 + 5943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×511213474² = 522678431998297352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511213471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317367 + ... + 1317754.

Almost surely, 2^511213474 is an apocalyptic number.

511213474 is a deficient number, since it is larger than the sum of its proper divisors (263512394).

511213474 is a wasteful number, since it uses less digits than its factorization.

511213474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635220.

The product of its digits is 3360, while the sum is 28.

The square root of 511213474 is about 22610.0303847651. The cubic root of 511213474 is about 799.5901410971.

Adding to 511213474 its reverse (474312115), we get a palindrome (985525589).

The spelling of 511213474 in words is "five hundred eleven million, two hundred thirteen thousand, four hundred seventy-four".