4148905 has 8 divisors (see below), whose sum is σ = 5013000. Its totient is φ = 3296256.

The previous prime is 4148899. The next prime is 4148909. The reversal of 4148905 is 5098414.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19881 + 4129024 = 141^2 + 2032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4148905 - 2⁵ = 4148873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4148909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2040 + ... + 3529.

It is an arithmetic number, because the mean of its divisors is an integer number (626625).

Almost surely, 2^4148905 is an apocalyptic number.

It is an amenable number.

4148905 is a deficient number, since it is larger than the sum of its proper divisors (864095).

4148905 is a wasteful number, since it uses less digits than its factorization.

4148905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723.

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

The square root of 4148905 is about 2036.8861038360. The cubic root of 4148905 is about 160.6859224256.

The spelling of 4148905 in words is "four million, one hundred forty-eight thousand, nine hundred five".