2543131 has 8 divisors (see below), whose sum is σ = 2699280. Its totient is φ = 2389248.

The previous prime is 2543129. The next prime is 2543141. The reversal of 2543131 is 1313452.

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

It is a cyclic number.

It is not a de Polignac number, because 2543131 - 2¹ = 2543129 is a prime.

It is a super-2 number, since 2×2543131² = 12935030566322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a d-powerful number, because it can be written as 2²¹ + 5³ + 4⁹ + 3⁸ + 1 + 3¹¹ + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2543099 and 2543108.

It is not an unprimeable number, because it can be changed into a prime (2543111) 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, 2115 + ... + 3091.

It is an arithmetic number, because the mean of its divisors is an integer number (337410).

2^2543131 is an apocalyptic number.

2543131 is a deficient number, since it is larger than the sum of its proper divisors (156149).

2543131 is a wasteful number, since it uses less digits than its factorization.

2543131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133.

The product of its digits is 360, while the sum is 19.

The square root of 2543131 is about 1594.7197245911. The cubic root of 2543131 is about 136.4969384832.

Adding to 2543131 its reverse (1313452), we get a palindrome (3856583).

The spelling of 2543131 in words is "two million, five hundred forty-three thousand, one hundred thirty-one".