103045013 has 4 divisors (see below), whose sum is σ = 105558348. Its totient is φ = 100531680.

The previous prime is 103044989. The next prime is 103045057. The reversal of 103045013 is 310540301.

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 26604964 + 76440049 = 5158^2 + 8743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103045013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103044982 and 103045000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103045213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256606 + ... + 1256687.

It is an arithmetic number, because the mean of its divisors is an integer number (26389587).

Almost surely, 2^103045013 is an apocalyptic number.

It is an amenable number.

103045013 is a deficient number, since it is larger than the sum of its proper divisors (2513335).

103045013 is an equidigital number, since it uses as much as digits as its factorization.

103045013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513334.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 103045013 is about 10151.1089541981. The cubic root of 103045013 is about 468.8230898058.

Adding to 103045013 its reverse (310540301), we get a palindrome (413585314).

The spelling of 103045013 in words is "one hundred three million, forty-five thousand, thirteen".