2541531 has 16 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 1616160.

The previous prime is 2541529. The next prime is 2541533. The reversal of 2541531 is 1351452.

It is an interprime number because it is at equal distance from previous prime (2541529) and next prime (2541533).

It is not a de Polignac number, because 2541531 - 2¹ = 2541529 is a prime.

It is a super-2 number, since 2×2541531² = 12918759647922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2541498 and 2541507.

It is not an unprimeable number, because it can be changed into a prime (2541533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11286 + ... + 11508.

It is an arithmetic number, because the mean of its divisors is an integer number (221760).

2^2541531 is an apocalyptic number.

2541531 is a deficient number, since it is larger than the sum of its proper divisors (1006629).

2541531 is a wasteful number, since it uses less digits than its factorization.

2541531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its digits is 600, while the sum is 21.

The square root of 2541531 is about 1594.2179901130. The cubic root of 2541531 is about 136.4683069894.

Adding to 2541531 its reverse (1351452), we get a palindrome (3892983).

The spelling of 2541531 in words is "two million, five hundred forty-one thousand, five hundred thirty-one".