515301423 has 32 divisors (see below), whose sum is σ = 848956416. Its totient is φ = 270736128.

The previous prime is 515301421. The next prime is 515301427. The reversal of 515301423 is 324103515.

It is not a de Polignac number, because 515301423 - 2¹ = 515301421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515301393 and 515301402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515301421) 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 31 ways as a sum of consecutive naturals, for example, 68211 + ... + 75387.

It is an arithmetic number, because the mean of its divisors is an integer number (26529888).

Almost surely, 2^515301423 is an apocalyptic number.

515301423 is a deficient number, since it is larger than the sum of its proper divisors (333654993).

515301423 is a wasteful number, since it uses less digits than its factorization.

515301423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7463.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 515301423 is about 22700.2516065351. The cubic root of 515301423 is about 801.7158085163.

Adding to 515301423 its reverse (324103515), we get a palindrome (839404938).

The spelling of 515301423 in words is "five hundred fifteen million, three hundred one thousand, four hundred twenty-three".