2531269 has 4 divisors (see below), whose sum is σ = 2725996. Its totient is φ = 2336544.

The previous prime is 2531267. The next prime is 2531293. The reversal of 2531269 is 9621352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 543169 + 1988100 = 737^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 2531269 - 2¹ = 2531267 is a prime.

It is a super-2 number, since 2×2531269² = 12814645500722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97344 + ... + 97369.

It is an arithmetic number, because the mean of its divisors is an integer number (681499).

2^2531269 is an apocalyptic number.

It is an amenable number.

2531269 is a deficient number, since it is larger than the sum of its proper divisors (194727).

2531269 is a wasteful number, since it uses less digits than its factorization.

2531269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194726.

The product of its digits is 3240, while the sum is 28.

The square root of 2531269 is about 1590.9962287825. The cubic root of 2531269 is about 136.2843854521.

The spelling of 2531269 in words is "two million, five hundred thirty-one thousand, two hundred sixty-nine".