513667541 has 2 divisors, whose sum is σ = 513667542. Its totient is φ = 513667540.

The previous prime is 513667537. The next prime is 513667547. The reversal of 513667541 is 145766315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 475894225 + 37773316 = 21815^2 + 6146^2 .

It is a cyclic number.

It is not a de Polignac number, because 513667541 - 2² = 513667537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 513667495 and 513667504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513667547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256833770 + 256833771.

It is an arithmetic number, because the mean of its divisors is an integer number (256833771).

Almost surely, 2^513667541 is an apocalyptic number.

It is an amenable number.

513667541 is a deficient number, since it is larger than the sum of its proper divisors (1).

513667541 is an equidigital number, since it uses as much as digits as its factorization.

513667541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 513667541 is about 22664.2348425884. The cubic root of 513667541 is about 800.8675697508.

The spelling of 513667541 in words is "five hundred thirteen million, six hundred sixty-seven thousand, five hundred forty-one".