189224641 has 2 divisors, whose sum is σ = 189224642. Its totient is φ = 189224640.

The previous prime is 189224627. The next prime is 189224647. The reversal of 189224641 is 146422981.

189224641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174240000 + 14984641 = 13200^2 + 3871^2 .

It is an emirp because it is prime and its reverse (146422981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189224641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189224641.

It is not a weakly prime, because it can be changed into another prime (189224647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94612320 + 94612321.

It is an arithmetic number, because the mean of its divisors is an integer number (94612321).

Almost surely, 2^189224641 is an apocalyptic number.

It is an amenable number.

189224641 is a deficient number, since it is larger than the sum of its proper divisors (1).

189224641 is an equidigital number, since it uses as much as digits as its factorization.

189224641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 189224641 is about 13755.8947727874. The cubic root of 189224641 is about 574.1066313573.

The spelling of 189224641 in words is "one hundred eighty-nine million, two hundred twenty-four thousand, six hundred forty-one".