189755273 has 2 divisors, whose sum is σ = 189755274. Its totient is φ = 189755272.

The previous prime is 189755243. The next prime is 189755287. The reversal of 189755273 is 372557981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166203664 + 23551609 = 12892^2 + 4853^2 .

It is a cyclic number.

It is not a de Polignac number, because 189755273 - 2⁸ = 189755017 is a prime.

It is not a weakly prime, because it can be changed into another prime (189755213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94877636 + 94877637.

It is an arithmetic number, because the mean of its divisors is an integer number (94877637).

Almost surely, 2^189755273 is an apocalyptic number.

It is an amenable number.

189755273 is a deficient number, since it is larger than the sum of its proper divisors (1).

189755273 is an equidigital number, since it uses as much as digits as its factorization.

189755273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 47.

The square root of 189755273 is about 13775.1687104006. The cubic root of 189755273 is about 574.6427754701.

The spelling of 189755273 in words is "one hundred eighty-nine million, seven hundred fifty-five thousand, two hundred seventy-three".