189345293 has 2 divisors, whose sum is σ = 189345294. Its totient is φ = 189345292.

The previous prime is 189345251. The next prime is 189345301. The reversal of 189345293 is 392543981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159719044 + 29626249 = 12638^2 + 5443^2 .

It is a cyclic number.

It is not a de Polignac number, because 189345293 - 2¹⁸ = 189083149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189341293) 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, 94672646 + 94672647.

It is an arithmetic number, because the mean of its divisors is an integer number (94672647).

Almost surely, 2^189345293 is an apocalyptic number.

It is an amenable number.

189345293 is a deficient number, since it is larger than the sum of its proper divisors (1).

189345293 is an equidigital number, since it uses as much as digits as its factorization.

189345293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 189345293 is about 13760.2795393117. The cubic root of 189345293 is about 574.2286246246.

The spelling of 189345293 in words is "one hundred eighty-nine million, three hundred forty-five thousand, two hundred ninety-three".