2531243 has 16 divisors (see below), whose sum is σ = 3075072. Its totient is φ = 2052000.

The previous prime is 2531233. The next prime is 2531261. The reversal of 2531243 is 3421352.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2531243 - 2⁸ = 2530987 is a prime.

It is a super-2 number, since 2×2531243² = 12814382250098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2531203) 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, 4148 + ... + 4718.

It is an arithmetic number, because the mean of its divisors is an integer number (192192).

2^2531243 is an apocalyptic number.

2531243 is a deficient number, since it is larger than the sum of its proper divisors (543829).

2531243 is a wasteful number, since it uses less digits than its factorization.

2531243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626.

The product of its digits is 720, while the sum is 20.

The square root of 2531243 is about 1590.9880577804. The cubic root of 2531243 is about 136.2839188342.

Adding to 2531243 its reverse (3421352), we get a palindrome (5952595).

The spelling of 2531243 in words is "two million, five hundred thirty-one thousand, two hundred forty-three".