189659137 has 2 divisors, whose sum is σ = 189659138. Its totient is φ = 189659136.

The previous prime is 189659131. The next prime is 189659149. The reversal of 189659137 is 731956981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179667216 + 9991921 = 13404^2 + 3161^2 .

It is a cyclic number.

It is not a de Polignac number, because 189659137 - 2⁷ = 189659009 is a prime.

It is not a weakly prime, because it can be changed into another prime (189659131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94829568 + 94829569.

It is an arithmetic number, because the mean of its divisors is an integer number (94829569).

Almost surely, 2^189659137 is an apocalyptic number.

It is an amenable number.

189659137 is a deficient number, since it is larger than the sum of its proper divisors (1).

189659137 is an equidigital number, since it uses as much as digits as its factorization.

189659137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 49.

The square root of 189659137 is about 13771.6788010758. The cubic root of 189659137 is about 574.5457150318.

The spelling of 189659137 in words is "one hundred eighty-nine million, six hundred fifty-nine thousand, one hundred thirty-seven".