2520103 has 4 divisors (see below), whose sum is σ = 2652760. Its totient is φ = 2387448.

The previous prime is 2520079. The next prime is 2520121. The reversal of 2520103 is 3010252.

2520103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2520103 - 2⁹ = 2519591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520173) 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, 66300 + ... + 66337.

It is an arithmetic number, because the mean of its divisors is an integer number (663190).

2^2520103 is an apocalyptic number.

2520103 is a deficient number, since it is larger than the sum of its proper divisors (132657).

2520103 is a wasteful number, since it uses less digits than its factorization.

2520103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132656.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2520103 is about 1587.4832282579. The cubic root of 2520103 is about 136.0836963189.

Adding to 2520103 its reverse (3010252), we get a palindrome (5530355).

It can be divided in two parts, 2520 and 103, that multiplied together give a triangular number (259560 = T₇₂₀).

The spelling of 2520103 in words is "two million, five hundred twenty thousand, one hundred three".