103006513 has 4 divisors (see below), whose sum is σ = 103052020. Its totient is φ = 102961008.

The previous prime is 103006511. The next prime is 103006517. The reversal of 103006513 is 315600301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33500944 + 69505569 = 5788^2 + 8337^2 .

It is a cyclic number.

It is not a de Polignac number, because 103006513 - 2¹ = 103006511 is a prime.

It is a super-2 number, since 2×103006513² = 21220683440838338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103006511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19170 + ... + 23947.

It is an arithmetic number, because the mean of its divisors is an integer number (25763005).

Almost surely, 2^103006513 is an apocalyptic number.

It is an amenable number.

103006513 is a deficient number, since it is larger than the sum of its proper divisors (45507).

103006513 is an equidigital number, since it uses as much as digits as its factorization.

103006513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45506.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 103006513 is about 10149.2124324994. The cubic root of 103006513 is about 468.7646948164.

Adding to 103006513 its reverse (315600301), we get a palindrome (418606814).

The spelling of 103006513 in words is "one hundred three million, six thousand, five hundred thirteen".