4090139 has 2 divisors, whose sum is σ = 4090140. Its totient is φ = 4090138.

The previous prime is 4090133. The next prime is 4090147. The reversal of 4090139 is 9310904.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4090139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4090133) 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 as a sum of consecutive naturals, namely, 2045069 + 2045070.

It is an arithmetic number, because the mean of its divisors is an integer number (2045070).

Almost surely, 2^4090139 is an apocalyptic number.

4090139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4090139 is an equidigital number, since it uses as much as digits as its factorization.

4090139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 4090139 is about 2022.4092068620. The cubic root of 4090139 is about 159.9236484669.

The spelling of 4090139 in words is "four million, ninety thousand, one hundred thirty-nine".