4138031 has 4 divisors (see below), whose sum is σ = 4148064. Its totient is φ = 4128000.

The previous prime is 4137997. The next prime is 4138033. The reversal of 4138031 is 1308314.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4138031 - 2¹⁴ = 4121647 is a prime.

It is a super-2 number, since 2×4138031² = 34246601113922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4137994 and 4138012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4370 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (1037016).

Almost surely, 2^4138031 is an apocalyptic number.

4138031 is a deficient number, since it is larger than the sum of its proper divisors (10033).

4138031 is an equidigital number, since it uses as much as digits as its factorization.

4138031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4138031 is about 2034.2150820402. The cubic root of 4138031 is about 160.5454172831.

The spelling of 4138031 in words is "four million, one hundred thirty-eight thousand, thirty-one".