2126125 has 16 divisors (see below), whose sum is σ = 2701296. Its totient is φ = 1670400.

The previous prime is 2126101. The next prime is 2126129. The reversal of 2126125 is 5216212.

It can be written as a sum of positive squares in 8 ways, for example, as 946729 + 1179396 = 973^2 + 1086^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2126125 is a prime.

It is a Duffinian number.

2126125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126129) 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, 9009 + ... + 9241.

It is an arithmetic number, because the mean of its divisors is an integer number (168831).

2^2126125 is an apocalyptic number.

2126125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2126125 is a deficient number, since it is larger than the sum of its proper divisors (575171).

2126125 is an equidigital number, since it uses as much as digits as its factorization.

2126125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 311 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 2126125 is about 1458.1237944701. The cubic root of 2126125 is about 128.5867633091.

The spelling of 2126125 in words is "two million, one hundred twenty-six thousand, one hundred twenty-five".