2531124 has 18 divisors (see below), whose sum is σ = 6398210. Its totient is φ = 843696.

The previous prime is 2531117. The next prime is 2531167. The reversal of 2531124 is 4211352.

It can be written as a sum of positive squares in only one way, i.e., 1774224 + 756900 = 1332^2 + 870^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2531097 and 2531106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35119 + ... + 35190.

2^2531124 is an apocalyptic number.

It is an amenable number.

2531124 is an abundant number, since it is smaller than the sum of its proper divisors (3867086).

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

2531124 is a wasteful number, since it uses less digits than its factorization.

2531124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70319 (or 70314 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2531124 is about 1590.9506591972. The cubic root of 2531124 is about 136.2817831193.

Adding to 2531124 its reverse (4211352), we get a palindrome (6742476).

It can be divided in two parts, 253112 and 4, that added together give a triangular number (253116 = T₇₁₁).

The spelling of 2531124 in words is "two million, five hundred thirty-one thousand, one hundred twenty-four".