2543316 has 12 divisors (see below), whose sum is σ = 5934432. Its totient is φ = 847768.

The previous prime is 2543309. The next prime is 2543323. The reversal of 2543316 is 6133452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2543309) and next prime (2543323).

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 4⁴ + 3⁸ + 3¹⁰ + 1 + 6² .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105960 + ... + 105983.

It is an arithmetic number, because the mean of its divisors is an integer number (494536).

2^2543316 is an apocalyptic number.

It is an amenable number.

2543316 is an abundant number, since it is smaller than the sum of its proper divisors (3391116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2543316 is a wasteful number, since it uses less digits than its factorization.

2543316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211950 (or 211948 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 2543316 is about 1594.7777274592. Note that the first 4 decimals coincide. The cubic root of 2543316 is about 136.5002482251.

Adding to 2543316 its reverse (6133452), we get a palindrome (8676768).

It can be divided in two parts, 254 and 3316, that added together give a triangular number (3570 = T₈₄).

The spelling of 2543316 in words is "two million, five hundred forty-three thousand, three hundred sixteen".