515413223 has 16 divisors (see below), whose sum is σ = 574457856. Its totient is φ = 459220320.

The previous prime is 515413207. The next prime is 515413231. The reversal of 515413223 is 322314515.

It is a happy number.

It is not a de Polignac number, because 515413223 - 2⁴ = 515413207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 515413192 and 515413201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515413253) 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, 177086 + ... + 179972.

It is an arithmetic number, because the mean of its divisors is an integer number (35903616).

Almost surely, 2^515413223 is an apocalyptic number.

515413223 is a deficient number, since it is larger than the sum of its proper divisors (59044633).

515413223 is a wasteful number, since it uses less digits than its factorization.

515413223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374.

The product of its digits is 3600, while the sum is 26.

The square root of 515413223 is about 22702.7140007533. The cubic root of 515413223 is about 801.7737845164.

Adding to 515413223 its reverse (322314515), we get a palindrome (837727738).

The spelling of 515413223 in words is "five hundred fifteen million, four hundred thirteen thousand, two hundred twenty-three".