380005139 has 2 divisors, whose sum is σ = 380005140. Its totient is φ = 380005138.

The previous prime is 380005079. The next prime is 380005151. The reversal of 380005139 is 931500083.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 380005139 - 2¹⁶ = 379939603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (380005159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190002569 + 190002570.

It is an arithmetic number, because the mean of its divisors is an integer number (190002570).

Almost surely, 2^380005139 is an apocalyptic number.

380005139 is a deficient number, since it is larger than the sum of its proper divisors (1).

380005139 is an equidigital number, since it uses as much as digits as its factorization.

380005139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 380005139 is about 19493.7205017411. The cubic root of 380005139 is about 724.3189094681.

The spelling of 380005139 in words is "three hundred eighty million, five thousand, one hundred thirty-nine".