2531173 has 4 divisors (see below), whose sum is σ = 2641248. Its totient is φ = 2421100.

The previous prime is 2531171. The next prime is 2531183. The reversal of 2531173 is 3711352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2531173 - 2¹ = 2531171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531171) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55003 + ... + 55048.

It is an arithmetic number, because the mean of its divisors is an integer number (660312).

2^2531173 is an apocalyptic number.

2531173 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2531173 is a deficient number, since it is larger than the sum of its proper divisors (110075).

2531173 is a wasteful number, since it uses less digits than its factorization.

2531173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110074.

The product of its digits is 630, while the sum is 22.

The square root of 2531173 is about 1590.9660587203. The cubic root of 2531173 is about 136.2826625394.

It can be divided in two parts, 2531 and 173, that added together give a square (2704 = 52²).

The spelling of 2531173 in words is "two million, five hundred thirty-one thousand, one hundred seventy-three".