38290139 has 2 divisors, whose sum is σ = 38290140. Its totient is φ = 38290138.

The previous prime is 38290117. The next prime is 38290151. The reversal of 38290139 is 93109283.

It is a strong prime.

It is an emirp because it is prime and its reverse (93109283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38290139 - 2¹⁶ = 38224603 is a prime.

It is a super-2 number, since 2×38290139² = 2932269489278642, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38290099 and 38290108.

It is not a weakly prime, because it can be changed into another prime (38290159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19145069 + 19145070.

It is an arithmetic number, because the mean of its divisors is an integer number (19145070).

Almost surely, 2^38290139 is an apocalyptic number.

38290139 is a deficient number, since it is larger than the sum of its proper divisors (1).

38290139 is an equidigital number, since it uses as much as digits as its factorization.

38290139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 38290139 is about 6187.9026333646. The cubic root of 38290139 is about 337.0510214584.

The spelling of 38290139 in words is "thirty-eight million, two hundred ninety thousand, one hundred thirty-nine".