189340297 has 2 divisors, whose sum is σ = 189340298. Its totient is φ = 189340296.

The previous prime is 189340289. The next prime is 189340351. The reversal of 189340297 is 792043981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178997641 + 10342656 = 13379^2 + 3216^2 .

It is a cyclic number.

It is not a de Polignac number, because 189340297 - 2³ = 189340289 is a prime.

It is not a weakly prime, because it can be changed into another prime (189340247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94670148 + 94670149.

It is an arithmetic number, because the mean of its divisors is an integer number (94670149).

Almost surely, 2^189340297 is an apocalyptic number.

It is an amenable number.

189340297 is a deficient number, since it is larger than the sum of its proper divisors (1).

189340297 is an equidigital number, since it uses as much as digits as its factorization.

189340297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 189340297 is about 13760.0980011045. The cubic root of 189340297 is about 574.2235741136.

The spelling of 189340297 in words is "one hundred eighty-nine million, three hundred forty thousand, two hundred ninety-seven".