515420041 has 6 divisors (see below), whose sum is σ = 538804490. Its totient is φ = 493009968.

The previous prime is 515420033. The next prime is 515420057. The reversal of 515420041 is 140024515.

It can be written as a sum of positive squares in only one way, i.e., 475414416 + 40005625 = 21804^2 + 6325^2 .

It is not a de Polignac number, because 515420041 - 2³ = 515420033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 515419994 and 515420021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515420341) 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 5 ways as a sum of consecutive naturals, for example, 486636 + ... + 487693.

Almost surely, 2^515420041 is an apocalyptic number.

It is an amenable number.

515420041 is a deficient number, since it is larger than the sum of its proper divisors (23384449).

515420041 is an equidigital number, since it uses as much as digits as its factorization.

515420041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974375 (or 974352 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 515420041 is about 22702.8641585153. The cubic root of 515420041 is about 801.7773198477. Note that the first 3 decimals are identical.

Adding to 515420041 its reverse (140024515), we get a palindrome (655444556).

The spelling of 515420041 in words is "five hundred fifteen million, four hundred twenty thousand, forty-one".