188264849 has 4 divisors (see below), whose sum is σ = 191351220. Its totient is φ = 185178480.

The previous prime is 188264831. The next prime is 188264873. The reversal of 188264849 is 948462881.

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 37761025 + 150503824 = 6145^2 + 12268^2 .

It is a cyclic number.

It is not a de Polignac number, because 188264849 - 2¹² = 188260753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188264797 and 188264806.

It is not an unprimeable number, because it can be changed into a prime (188266849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543094 + ... + 1543215.

It is an arithmetic number, because the mean of its divisors is an integer number (47837805).

Almost surely, 2^188264849 is an apocalyptic number.

It is an amenable number.

188264849 is a deficient number, since it is larger than the sum of its proper divisors (3086371).

188264849 is an equidigital number, since it uses as much as digits as its factorization.

188264849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086370.

The product of its digits is 884736, while the sum is 50.

The square root of 188264849 is about 13720.9638509836. The cubic root of 188264849 is about 573.1343174933.

The spelling of 188264849 in words is "one hundred eighty-eight million, two hundred sixty-four thousand, eight hundred forty-nine".