515103930 has 48 divisors (see below), whose sum is σ = 1461024864. Its totient is φ = 124873440.

The previous prime is 515103917. The next prime is 515103931. The reversal of 515103930 is 39301515.

It is a junction number, because it is equal to n+sod(n) for n = 515103894 and 515103903.

It is not an unprimeable number, because it can be changed into a prime (515103931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259164 + ... + 261143.

It is an arithmetic number, because the mean of its divisors is an integer number (30438018).

Almost surely, 2^515103930 is an apocalyptic number.

515103930 is an abundant number, since it is smaller than the sum of its proper divisors (945920934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

515103930 is a wasteful number, since it uses less digits than its factorization.

515103930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520331 (or 520328 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 515103930 is about 22695.9011717975. The cubic root of 515103930 is about 801.6133743003.

The spelling of 515103930 in words is "five hundred fifteen million, one hundred three thousand, nine hundred thirty".