514131021 has 24 divisors (see below), whose sum is σ = 781328184. Its totient is φ = 325347840.

The previous prime is 514130987. The next prime is 514131031. The reversal of 514131021 is 120131415.

514131021 is a `hidden beast` number, since 514 + 131 + 0 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 119115396 + 395015625 = 10914^2 + 19875^2 .

It is not a de Polignac number, because 514131021 - 2⁷ = 514130893 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 514130985 and 514131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514131031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5176 + ... + 32481.

It is an arithmetic number, because the mean of its divisors is an integer number (32555341).

Almost surely, 2^514131021 is an apocalyptic number.

It is an amenable number.

514131021 is a deficient number, since it is larger than the sum of its proper divisors (267197163).

514131021 is a wasteful number, since it uses less digits than its factorization.

514131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37741 (or 37738 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 514131021 is about 22674.4574576769. The cubic root of 514131021 is about 801.1083704553.

Adding to 514131021 its reverse (120131415), we get a palindrome (634262436).

The spelling of 514131021 in words is "five hundred fourteen million, one hundred thirty-one thousand, twenty-one".