515403113 has 12 divisors (see below), whose sum is σ = 541895760. Its totient is φ = 490150056.

The previous prime is 515403107. The next prime is 515403131. The reversal of 515403113 is 311304515.

It is a de Polignac number, because none of the positive numbers 2^k-515403113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515403143) 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 11 ways as a sum of consecutive naturals, for example, 91970 + ... + 97412.

It is an arithmetic number, because the mean of its divisors is an integer number (45157980).

Almost surely, 2^515403113 is an apocalyptic number.

It is an amenable number.

515403113 is a deficient number, since it is larger than the sum of its proper divisors (26492647).

515403113 is a wasteful number, since it uses less digits than its factorization.

515403113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668 (or 5645 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 515403113 is about 22702.4913390579. The cubic root of 515403113 is about 801.7685421299.

Adding to 515403113 its reverse (311304515), we get a palindrome (826707628).

The spelling of 515403113 in words is "five hundred fifteen million, four hundred three thousand, one hundred thirteen".