513145502 has 16 divisors (see below), whose sum is σ = 845458560. Its totient is φ = 232500312.

The previous prime is 513145469. The next prime is 513145541. The reversal of 513145502 is 205541315.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 292688 + ... + 294435.

It is an arithmetic number, because the mean of its divisors is an integer number (52841160).

Almost surely, 2^513145502 is an apocalyptic number.

513145502 is a deficient number, since it is larger than the sum of its proper divisors (332313058).

513145502 is a wasteful number, since it uses less digits than its factorization.

513145502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587167.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 513145502 is about 22652.7151132044. The cubic root of 513145502 is about 800.5961712395.

Adding to 513145502 its reverse (205541315), we get a palindrome (718686817).

The spelling of 513145502 in words is "five hundred thirteen million, one hundred forty-five thousand, five hundred two".