2125489 has 4 divisors (see below), whose sum is σ = 2128420. Its totient is φ = 2122560.

The previous prime is 2125477. The next prime is 2125517. The reversal of 2125489 is 9845212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2030625 + 94864 = 1425^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125489 - 2⁵ = 2125457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125489.

It is not an unprimeable number, because it can be changed into a prime (2125429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (532105).

2^2125489 is an apocalyptic number.

It is an amenable number.

2125489 is a deficient number, since it is larger than the sum of its proper divisors (2931).

2125489 is a wasteful number, since it uses less digits than its factorization.

2125489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930.

The product of its digits is 5760, while the sum is 31.

The square root of 2125489 is about 1457.9056896795. The cubic root of 2125489 is about 128.5739403977.

The spelling of 2125489 in words is "two million, one hundred twenty-five thousand, four hundred eighty-nine".