189848137 has 2 divisors, whose sum is σ = 189848138. Its totient is φ = 189848136.

The previous prime is 189848119. The next prime is 189848149. The reversal of 189848137 is 731848981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155226681 + 34621456 = 12459^2 + 5884^2 .

It is an emirp because it is prime and its reverse (731848981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189848137 is a prime.

It is not a weakly prime, because it can be changed into another prime (189848177) 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, 94924068 + 94924069.

It is an arithmetic number, because the mean of its divisors is an integer number (94924069).

Almost surely, 2^189848137 is an apocalyptic number.

It is an amenable number.

189848137 is a deficient number, since it is larger than the sum of its proper divisors (1).

189848137 is an equidigital number, since it uses as much as digits as its factorization.

189848137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 49.

The square root of 189848137 is about 13778.5390009246. The cubic root of 189848137 is about 574.7365013221.

The spelling of 189848137 in words is "one hundred eighty-nine million, eight hundred forty-eight thousand, one hundred thirty-seven".