189701653 has 2 divisors, whose sum is σ = 189701654. Its totient is φ = 189701652.

The previous prime is 189701651. The next prime is 189701663. The reversal of 189701653 is 356107981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179506404 + 10195249 = 13398^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 189701653 - 2¹ = 189701651 is a prime.

Together with 189701651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189701651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94850826 + 94850827.

It is an arithmetic number, because the mean of its divisors is an integer number (94850827).

Almost surely, 2^189701653 is an apocalyptic number.

It is an amenable number.

189701653 is a deficient number, since it is larger than the sum of its proper divisors (1).

189701653 is an equidigital number, since it uses as much as digits as its factorization.

189701653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 189701653 is about 13773.2223172357. Note that the first 3 decimals coincide. The cubic root of 189701653 is about 574.5886439075.

The spelling of 189701653 in words is "one hundred eighty-nine million, seven hundred one thousand, six hundred fifty-three".