2531130 has 64 divisors (see below), whose sum is σ = 7361280. Its totient is φ = 543744.

The previous prime is 2531117. The next prime is 2531167. The reversal of 2531130 is 311352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 31 ways as a sum of consecutive naturals, for example, 3216 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (115020).

2^2531130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3680640).

2531130 is an abundant number, since it is smaller than the sum of its proper divisors (4830150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531130 is a wasteful number, since it uses less digits than its factorization.

2531130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 2531130 is about 1590.9525448611. The cubic root of 2531130 is about 136.2818908040.

Adding to 2531130 its reverse (311352), we get a palindrome (2842482).

The spelling of 2531130 in words is "two million, five hundred thirty-one thousand, one hundred thirty".