4149725 has 12 divisors (see below), whose sum is σ = 5190144. Its totient is φ = 3291120.

The previous prime is 4149721. The next prime is 4149731. The reversal of 4149725 is 5279414.

It is a happy number.

It is not a de Polignac number, because 4149725 - 2² = 4149721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4149691 and 4149700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4149721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2522 + ... + 3828.

It is an arithmetic number, because the mean of its divisors is an integer number (432512).

Almost surely, 2^4149725 is an apocalyptic number.

It is an amenable number.

4149725 is a deficient number, since it is larger than the sum of its proper divisors (1040419).

4149725 is a wasteful number, since it uses less digits than its factorization.

4149725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1439 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 4149725 is about 2037.0873815328. The cubic root of 4149725 is about 160.6965078513.

The spelling of 4149725 in words is "four million, one hundred forty-nine thousand, seven hundred twenty-five".