515740153 has 2 divisors, whose sum is σ = 515740154. Its totient is φ = 515740152.

The previous prime is 515740139. The next prime is 515740163. The reversal of 515740153 is 351047515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508412304 + 7327849 = 22548^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 515740153 - 2⁹ = 515739641 is a prime.

It is not a weakly prime, because it can be changed into another prime (515740103) 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, 257870076 + 257870077.

It is an arithmetic number, because the mean of its divisors is an integer number (257870077).

Almost surely, 2^515740153 is an apocalyptic number.

It is an amenable number.

515740153 is a deficient number, since it is larger than the sum of its proper divisors (1).

515740153 is an equidigital number, since it uses as much as digits as its factorization.

515740153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 515740153 is about 22709.9130997897. The cubic root of 515740153 is about 801.9432721488.

Adding to 515740153 its reverse (351047515), we get a palindrome (866787668).

The spelling of 515740153 in words is "five hundred fifteen million, seven hundred forty thousand, one hundred fifty-three".