513306061 has 4 divisors (see below), whose sum is σ = 531006300. Its totient is φ = 495605824.

The previous prime is 513306047. The next prime is 513306067. The reversal of 513306061 is 160603315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160603315 = 5 ⋅32120663.

It can be written as a sum of positive squares in 2 ways, for example, as 327392836 + 185913225 = 18094^2 + 13635^2 .

It is not a de Polignac number, because 513306061 - 2⁹ = 513305549 is a prime.

It is a super-2 number, since 2×513306061² = 526966224518671442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513306067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8850076 + ... + 8850133.

It is an arithmetic number, because the mean of its divisors is an integer number (132751575).

Almost surely, 2^513306061 is an apocalyptic number.

It is an amenable number.

513306061 is a deficient number, since it is larger than the sum of its proper divisors (17700239).

513306061 is a wasteful number, since it uses less digits than its factorization.

513306061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700238.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 513306061 is about 22656.2587599983. The cubic root of 513306061 is about 800.6796625142.

Adding to 513306061 its reverse (160603315), we get a palindrome (673909376).

The spelling of 513306061 in words is "five hundred thirteen million, three hundred six thousand, sixty-one".