521217314 has 8 divisors (see below), whose sum is σ = 827815788. Its totient is φ = 245278720.

The previous prime is 521217293. The next prime is 521217337. The reversal of 521217314 is 413712125.

It can be written as a sum of positive squares in 2 ways, for example, as 519612025 + 1605289 = 22795^2 + 1267^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7664927 + ... + 7664994.

Almost surely, 2^521217314 is an apocalyptic number.

521217314 is a deficient number, since it is larger than the sum of its proper divisors (306598474).

521217314 is a wasteful number, since it uses less digits than its factorization.

521217314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15329940.

The product of its digits is 1680, while the sum is 26.

The square root of 521217314 is about 22830.1842743330. The cubic root of 521217314 is about 804.7721608722.

Adding to 521217314 its reverse (413712125), we get a palindrome (934929439).

The spelling of 521217314 in words is "five hundred twenty-one million, two hundred seventeen thousand, three hundred fourteen".