189523249 has 2 divisors, whose sum is σ = 189523250. Its totient is φ = 189523248.

The previous prime is 189523237. The next prime is 189523307. The reversal of 189523249 is 942325981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187142400 + 2380849 = 13680^2 + 1543^2 .

It is a cyclic number.

It is not a de Polignac number, because 189523249 - 2¹¹ = 189521201 is a prime.

It is not a weakly prime, because it can be changed into another prime (189527249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94761624 + 94761625.

It is an arithmetic number, because the mean of its divisors is an integer number (94761625).

Almost surely, 2^189523249 is an apocalyptic number.

It is an amenable number.

189523249 is a deficient number, since it is larger than the sum of its proper divisors (1).

189523249 is an equidigital number, since it uses as much as digits as its factorization.

189523249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 189523249 is about 13766.7443137439. The cubic root of 189523249 is about 574.4084643777.

It can be divided in two parts, 18952 and 3249, that added together give a square (22201 = 149²).

The spelling of 189523249 in words is "one hundred eighty-nine million, five hundred twenty-three thousand, two hundred forty-nine".