383142139 has 2 divisors, whose sum is σ = 383142140. Its totient is φ = 383142138.

The previous prime is 383142131. The next prime is 383142217. The reversal of 383142139 is 931241383.

It is a weak prime.

It is an emirp because it is prime and its reverse (931241383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 383142139 - 2³ = 383142131 is a prime.

It is a super-3 number, since 3×383142139³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (383142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191571069 + 191571070.

It is an arithmetic number, because the mean of its divisors is an integer number (191571070).

Almost surely, 2^383142139 is an apocalyptic number.

383142139 is a deficient number, since it is larger than the sum of its proper divisors (1).

383142139 is an equidigital number, since it uses as much as digits as its factorization.

383142139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 383142139 is about 19574.0169357237. The cubic root of 383142139 is about 726.3065707605.

The spelling of 383142139 in words is "three hundred eighty-three million, one hundred forty-two thousand, one hundred thirty-nine".