2515243 has 4 divisors (see below), whose sum is σ = 2522800. Its totient is φ = 2507688.

The previous prime is 2515241. The next prime is 2515273. The reversal of 2515243 is 3425152.

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 2515243 - 2¹ = 2515241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2515241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3255 + ... + 3952.

It is an arithmetic number, because the mean of its divisors is an integer number (630700).

2^2515243 is an apocalyptic number.

2515243 is a deficient number, since it is larger than the sum of its proper divisors (7557).

2515243 is an equidigital number, since it uses as much as digits as its factorization.

2515243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its digits is 1200, while the sum is 22.

The square root of 2515243 is about 1585.9517647142. The cubic root of 2515243 is about 135.9961612238.

Subtracting 2515243 from its reverse (3425152), we obtain a palindrome (909909).

The spelling of 2515243 in words is "two million, five hundred fifteen thousand, two hundred forty-three".