189038107 has 2 divisors, whose sum is σ = 189038108. Its totient is φ = 189038106.

The previous prime is 189038071. The next prime is 189038111. The reversal of 189038107 is 701830981.

Together with previous prime (189038071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189038107 - 2²⁷ = 54820379 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (189038117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94519053 + 94519054.

It is an arithmetic number, because the mean of its divisors is an integer number (94519054).

Almost surely, 2^189038107 is an apocalyptic number.

189038107 is a deficient number, since it is larger than the sum of its proper divisors (1).

189038107 is an equidigital number, since it uses as much as digits as its factorization.

189038107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 189038107 is about 13749.1129532054. The cubic root of 189038107 is about 573.9179215883.

The spelling of 189038107 in words is "one hundred eighty-nine million, thirty-eight thousand, one hundred seven".