189824651 has 2 divisors, whose sum is σ = 189824652. Its totient is φ = 189824650.

The previous prime is 189824639. The next prime is 189824683. The reversal of 189824651 is 156428981.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189824651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189824351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94912325 + 94912326.

It is an arithmetic number, because the mean of its divisors is an integer number (94912326).

Almost surely, 2^189824651 is an apocalyptic number.

189824651 is a deficient number, since it is larger than the sum of its proper divisors (1).

189824651 is an equidigital number, since it uses as much as digits as its factorization.

189824651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 44.

The square root of 189824651 is about 13777.6867071363. The cubic root of 189824651 is about 574.7128002413.

The spelling of 189824651 in words is "one hundred eighty-nine million, eight hundred twenty-four thousand, six hundred fifty-one".