2531090971 has 16 divisors (see below), whose sum is σ = 2641816800. Its totient is φ = 2422038528.

The previous prime is 2531090941. The next prime is 2531091001. The reversal of 2531090971 is 1790901352.

It is an interprime number because it is at equal distance from previous prime (2531090941) and next prime (2531091001).

It is a cyclic number.

It is not a de Polignac number, because 2531090971 - 2⁹ = 2531090459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2531090971.

It is not an unprimeable number, because it can be changed into a prime (2531090941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705996 + ... + 1707478.

It is an arithmetic number, because the mean of its divisors is an integer number (165113550).

Almost surely, 2^2531090971 is an apocalyptic number.

2531090971 is a deficient number, since it is larger than the sum of its proper divisors (110725829).

2531090971 is a wasteful number, since it uses less digits than its factorization.

2531090971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 2531090971 is about 50309.9490260127. The cubic root of 2531090971 is about 1362.8119032984.

It can be divided in two parts, 25310 and 90971, that added together give a square (116281 = 341²).

The spelling of 2531090971 in words is "two billion, five hundred thirty-one million, ninety thousand, nine hundred seventy-one".