513771149 has 2 divisors, whose sum is σ = 513771150. Its totient is φ = 513771148.

The previous prime is 513771133. The next prime is 513771151. The reversal of 513771149 is 941177315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390339049 + 123432100 = 19757^2 + 11110^2 .

It is a cyclic number.

It is not a de Polignac number, because 513771149 - 2⁴ = 513771133 is a prime.

Together with 513771151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513771109) 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 as a sum of consecutive naturals, namely, 256885574 + 256885575.

It is an arithmetic number, because the mean of its divisors is an integer number (256885575).

Almost surely, 2^513771149 is an apocalyptic number.

It is an amenable number.

513771149 is a deficient number, since it is larger than the sum of its proper divisors (1).

513771149 is an equidigital number, since it uses as much as digits as its factorization.

513771149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 38.

The square root of 513771149 is about 22666.5204431558. The cubic root of 513771149 is about 800.9214117805.

The spelling of 513771149 in words is "five hundred thirteen million, seven hundred seventy-one thousand, one hundred forty-nine".