2731125 has 16 divisors (see below), whose sum is σ = 4545216. Its totient is φ = 1456400.

The previous prime is 2731111. The next prime is 2731129. The reversal of 2731125 is 5211372.

2731125 = T₄ + T₅ + ... + T₂₅₃.

It is not a de Polignac number, because 2731125 - 2⁶ = 2731061 is a prime.

It is an Ulam number.

2731125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3267 + ... + 4016.

It is an arithmetic number, because the mean of its divisors is an integer number (284076).

2^2731125 is an apocalyptic number.

2731125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2731125 is a deficient number, since it is larger than the sum of its proper divisors (1814091).

2731125 is an equidigital number, since it uses as much as digits as its factorization.

2731125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7301 (or 7291 counting only the distinct ones).

The product of its digits is 420, while the sum is 21.

The square root of 2731125 is about 1652.6115696073. The cubic root of 2731125 is about 139.7806940579.

Adding to 2731125 its reverse (5211372), we get a palindrome (7942497).

The spelling of 2731125 in words is "two million, seven hundred thirty-one thousand, one hundred twenty-five".