2531045 has 16 divisors (see below), whose sum is σ = 3509568. Its totient is φ = 1731840.

The previous prime is 2531027. The next prime is 2531069. The reversal of 2531045 is 5401352.

It is not a de Polignac number, because 2531045 - 2⁶ = 2530981 is a prime.

It is a super-3 number, since 3×2531045³ = 48643056333332748375, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 419 + ... + 2288.

It is an arithmetic number, because the mean of its divisors is an integer number (219348).

2^2531045 is an apocalyptic number.

It is an amenable number.

2531045 is a deficient number, since it is larger than the sum of its proper divisors (978523).

2531045 is a wasteful number, since it uses less digits than its factorization.

2531045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2531045 is about 1590.9258310808. The cubic root of 2531045 is about 136.2803652547.

Adding to 2531045 its reverse (5401352), we get a palindrome (7932397).

The spelling of 2531045 in words is "two million, five hundred thirty-one thousand, forty-five".