4138501 has 4 divisors (see below), whose sum is σ = 4145292. Its totient is φ = 4131712.

The previous prime is 4138489. The next prime is 4138507. The reversal of 4138501 is 1058314.

4138501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1058314 = 2 ⋅529157.

It can be written as a sum of positive squares in 2 ways, for example, as 3496900 + 641601 = 1870^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 4138501 - 2⁷ = 4138373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138507) 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 3 ways as a sum of consecutive naturals, for example, 2380 + ... + 3733.

It is an arithmetic number, because the mean of its divisors is an integer number (1036323).

Almost surely, 2^4138501 is an apocalyptic number.

It is an amenable number.

4138501 is a deficient number, since it is larger than the sum of its proper divisors (6791).

4138501 is an equidigital number, since it uses as much as digits as its factorization.

4138501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 4138501 is about 2034.3306024341. The cubic root of 4138501 is about 160.5514953340.

The spelling of 4138501 in words is "four million, one hundred thirty-eight thousand, five hundred one".