188034139 has 2 divisors, whose sum is σ = 188034140. Its totient is φ = 188034138.

The previous prime is 188034107. The next prime is 188034157. The reversal of 188034139 is 931430881.

It is a strong prime.

It is an emirp because it is prime and its reverse (931430881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188034139 - 2⁵ = 188034107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188034098 and 188034107.

It is not a weakly prime, because it can be changed into another prime (188034179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94017069 + 94017070.

It is an arithmetic number, because the mean of its divisors is an integer number (94017070).

Almost surely, 2^188034139 is an apocalyptic number.

188034139 is a deficient number, since it is larger than the sum of its proper divisors (1).

188034139 is an equidigital number, since it uses as much as digits as its factorization.

188034139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 188034139 is about 13712.5540655270. The cubic root of 188034139 is about 572.9001051254.

The spelling of 188034139 in words is "one hundred eighty-eight million, thirty-four thousand, one hundred thirty-nine".