2531969 has 16 divisors (see below), whose sum is σ = 2908224. Its totient is φ = 2184000.

The previous prime is 2531951. The next prime is 2531981. The reversal of 2531969 is 9691352.

It is a cyclic number.

It is not a de Polignac number, because 2531969 - 2¹⁶ = 2466433 is a prime.

It is a super-2 number, since 2×2531969² = 12821734033922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2³ + 5⁹ + 3¹² + 1 + 9 + 6⁶ + 9³ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2531989) 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, 25019 + ... + 25119.

It is an arithmetic number, because the mean of its divisors is an integer number (181764).

2^2531969 is an apocalyptic number.

It is an amenable number.

2531969 is a deficient number, since it is larger than the sum of its proper divisors (376255).

2531969 is a wasteful number, since it uses less digits than its factorization.

2531969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208.

The product of its digits is 14580, while the sum is 35.

The square root of 2531969 is about 1591.2162015264. The cubic root of 2531969 is about 136.2969470404.

It can be divided in two parts, 253 and 1969, that added together give a palindrome (2222).

The spelling of 2531969 in words is "two million, five hundred thirty-one thousand, nine hundred sixty-nine".