515434161 has 16 divisors (see below), whose sum is σ = 769987008. Its totient is φ = 303940800.

The previous prime is 515434159. The next prime is 515434181. The reversal of 515434161 is 161434515.

It is a happy number.

It is not a de Polignac number, because 515434161 - 2¹ = 515434159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (515434111) 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 15 ways as a sum of consecutive naturals, for example, 209850 + ... + 212291.

It is an arithmetic number, because the mean of its divisors is an integer number (48124188).

Almost surely, 2^515434161 is an apocalyptic number.

It is an amenable number.

515434161 is a deficient number, since it is larger than the sum of its proper divisors (254552847).

515434161 is a wasteful number, since it uses less digits than its factorization.

515434161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422192.

The product of its digits is 7200, while the sum is 30.

The square root of 515434161 is about 22703.1751303645. The cubic root of 515434161 is about 801.7846413794.

Adding to 515434161 its reverse (161434515), we get a palindrome (676868676).

The spelling of 515434161 in words is "five hundred fifteen million, four hundred thirty-four thousand, one hundred sixty-one".