189170533 has 2 divisors, whose sum is σ = 189170534. Its totient is φ = 189170532.

The previous prime is 189170447. The next prime is 189170537. The reversal of 189170533 is 335071981.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116273089 + 72897444 = 10783^2 + 8538^2 .

It is a cyclic number.

It is not a de Polignac number, because 189170533 - 2²⁵ = 155616101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189170492 and 189170501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189170537) 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, 94585266 + 94585267.

It is an arithmetic number, because the mean of its divisors is an integer number (94585267).

Almost surely, 2^189170533 is an apocalyptic number.

It is an amenable number.

189170533 is a deficient number, since it is larger than the sum of its proper divisors (1).

189170533 is an equidigital number, since it uses as much as digits as its factorization.

189170533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 189170533 is about 13753.9279116913. The cubic root of 189170533 is about 574.0519050053.

The spelling of 189170533 in words is "one hundred eighty-nine million, one hundred seventy thousand, five hundred thirty-three".