2149725 has 12 divisors (see below), whose sum is σ = 3554336. Its totient is φ = 1146480.

The previous prime is 2149711. The next prime is 2149727. The reversal of 2149725 is 5279412.

2149725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2149725 - 2⁶ = 2149661 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2149692 and 2149701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14257 + ... + 14406.

2^2149725 is an apocalyptic number.

2149725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2149725 is a deficient number, since it is larger than the sum of its proper divisors (1404611).

2149725 is a wasteful number, since it uses less digits than its factorization.

2149725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28676 (or 28671 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 2149725 is about 1466.1940526411. The cubic root of 2149725 is about 129.0607850065.

The spelling of 2149725 in words is "two million, one hundred forty-nine thousand, seven hundred twenty-five".