2125305 has 64 divisors (see below), whose sum is σ = 4677120. Its totient is φ = 891648.

The previous prime is 2125273. The next prime is 2125313. The reversal of 2125305 is 5035212.

It is a happy number.

It is not a de Polignac number, because 2125305 - 2⁵ = 2125273 is a prime.

It is a Curzon number.

2125305 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12199 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (73080).

2^2125305 is an apocalyptic number.

It is an amenable number.

2125305 is an abundant number, since it is smaller than the sum of its proper divisors (2551815).

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

2125305 is a wasteful number, since it uses less digits than its factorization.

2125305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2125305 is about 1457.8425840947. The cubic root of 2125305 is about 128.5702301476.

The spelling of 2125305 in words is "two million, one hundred twenty-five thousand, three hundred five".