2103513 has 8 divisors (see below), whose sum is σ = 2831328. Its totient is φ = 1389024.

The previous prime is 2103503. The next prime is 2103523. The reversal of 2103513 is 3153012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2103503) and next prime (2103523).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2103513 - 2⁶ = 2103449 is a prime.

2103513 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2103492 and 2103501.

It is not an unprimeable number, because it can be changed into a prime (2103503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2956 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (353916).

2^2103513 is an apocalyptic number.

It is an amenable number.

2103513 is a deficient number, since it is larger than the sum of its proper divisors (727815).

2103513 is a wasteful number, since it uses less digits than its factorization.

2103513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 2103513 is about 1450.3492682799. The cubic root of 2103513 is about 128.1292842510.

Adding to 2103513 its reverse (3153012), we get a palindrome (5256525).

The spelling of 2103513 in words is "two million, one hundred three thousand, five hundred thirteen".