4081139 has 8 divisors (see below), whose sum is σ = 4339008. Its totient is φ = 3825280.

The previous prime is 4081111. The next prime is 4081153. The reversal of 4081139 is 9311804.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4081139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4081039) 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, 7049 + ... + 7605.

It is an arithmetic number, because the mean of its divisors is an integer number (542376).

Almost surely, 2^4081139 is an apocalyptic number.

4081139 is a deficient number, since it is larger than the sum of its proper divisors (257869).

4081139 is a wasteful number, since it uses less digits than its factorization.

4081139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 4081139 is about 2020.1829125106. The cubic root of 4081139 is about 159.8062629026.

The spelling of 4081139 in words is "four million, eighty-one thousand, one hundred thirty-nine".