189208541 has 2 divisors, whose sum is σ = 189208542. Its totient is φ = 189208540.

The previous prime is 189208529. The next prime is 189208567. The reversal of 189208541 is 145802981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128913316 + 60295225 = 11354^2 + 7765^2 .

It is a cyclic number.

It is not a de Polignac number, because 189208541 - 2⁶ = 189208477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189208495 and 189208504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189298541) 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, 94604270 + 94604271.

It is an arithmetic number, because the mean of its divisors is an integer number (94604271).

Almost surely, 2^189208541 is an apocalyptic number.

It is an amenable number.

189208541 is a deficient number, since it is larger than the sum of its proper divisors (1).

189208541 is an equidigital number, since it uses as much as digits as its factorization.

189208541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 189208541 is about 13755.3095566767. The cubic root of 189208541 is about 574.0903484552.

The spelling of 189208541 in words is "one hundred eighty-nine million, two hundred eight thousand, five hundred forty-one".