515046149 has 2 divisors, whose sum is σ = 515046150. Its totient is φ = 515046148.

The previous prime is 515046143. The next prime is 515046197. The reversal of 515046149 is 941640515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513928900 + 1117249 = 22670^2 + 1057^2 .

It is a cyclic number.

It is not a de Polignac number, because 515046149 - 2⁸ = 515045893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515046143) 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, 257523074 + 257523075.

It is an arithmetic number, because the mean of its divisors is an integer number (257523075).

Almost surely, 2^515046149 is an apocalyptic number.

It is an amenable number.

515046149 is a deficient number, since it is larger than the sum of its proper divisors (1).

515046149 is an equidigital number, since it uses as much as digits as its factorization.

515046149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 515046149 is about 22694.6281969985. The cubic root of 515046149 is about 801.5833999257.

The spelling of 515046149 in words is "five hundred fifteen million, forty-six thousand, one hundred forty-nine".