189246985 has 4 divisors (see below), whose sum is σ = 227096388. Its totient is φ = 151397584.

The previous prime is 189246979. The next prime is 189246991. The reversal of 189246985 is 589642981.

189246985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (189246979) and next prime (189246991).

It can be written as a sum of positive squares in 2 ways, for example, as 41113744 + 148133241 = 6412^2 + 12171^2 .

It is a cyclic number.

It is not a de Polignac number, because 189246985 - 2¹⁹ = 188722697 is a prime.

It is a super-3 number, since 3×189246985³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

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, 18924694 + ... + 18924703.

It is an arithmetic number, because the mean of its divisors is an integer number (56774097).

Almost surely, 2^189246985 is an apocalyptic number.

It is an amenable number.

189246985 is a deficient number, since it is larger than the sum of its proper divisors (37849403).

189246985 is an equidigital number, since it uses as much as digits as its factorization.

189246985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37849402.

The product of its digits is 1244160, while the sum is 52.

The square root of 189246985 is about 13756.7069097223. The cubic root of 189246985 is about 574.1292276633.

The spelling of 189246985 in words is "one hundred eighty-nine million, two hundred forty-six thousand, nine hundred eighty-five".