189484745 has 4 divisors (see below), whose sum is σ = 227381700. Its totient is φ = 151587792.

The previous prime is 189484693. The next prime is 189484751. The reversal of 189484745 is 547484981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109579024 + 79905721 = 10468^2 + 8939^2 .

It is a cyclic number.

It is not a de Polignac number, because 189484745 - 2⁸ = 189484489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189484693 and 189484702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18948470 + ... + 18948479.

It is an arithmetic number, because the mean of its divisors is an integer number (56845425).

Almost surely, 2^189484745 is an apocalyptic number.

It is an amenable number.

189484745 is a deficient number, since it is larger than the sum of its proper divisors (37896955).

189484745 is an equidigital number, since it uses as much as digits as its factorization.

189484745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37896954.

The product of its digits is 1290240, while the sum is 50.

The square root of 189484745 is about 13765.3458002333. The cubic root of 189484745 is about 574.3695623405.

The spelling of 189484745 in words is "one hundred eighty-nine million, four hundred eighty-four thousand, seven hundred forty-five".