2148725 has 12 divisors (see below), whose sum is σ = 2710020. Its totient is φ = 1689600.

The previous prime is 2148719. The next prime is 2148733. The reversal of 2148725 is 5278412.

It can be written as a sum of positive squares in 6 ways, for example, as 1062961 + 1085764 = 1031^2 + 1042^2 .

It is not a de Polignac number, because 2148725 - 2⁴ = 2148709 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 821 + ... + 2229.

It is an arithmetic number, because the mean of its divisors is an integer number (225835).

2^2148725 is an apocalyptic number.

2148725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2148725 is a deficient number, since it is larger than the sum of its proper divisors (561295).

2148725 is a wasteful number, since it uses less digits than its factorization.

2148725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1475 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 2148725 is about 1465.8529939936. The cubic root of 2148725 is about 129.0407699190.

It can be divided in two parts, 21487 and 25, that added together give a palindrome (21512).

The spelling of 2148725 in words is "two million, one hundred forty-eight thousand, seven hundred twenty-five".