188854949 has 2 divisors, whose sum is σ = 188854950. Its totient is φ = 188854948.

The previous prime is 188854933. The next prime is 188854961. The reversal of 188854949 is 949458881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145202500 + 43652449 = 12050^2 + 6607^2 .

It is a cyclic number.

It is not a de Polignac number, because 188854949 - 2⁴ = 188854933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188854894 and 188854903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188854349) 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 as a sum of consecutive naturals, namely, 94427474 + 94427475.

It is an arithmetic number, because the mean of its divisors is an integer number (94427475).

Almost surely, 2^188854949 is an apocalyptic number.

It is an amenable number.

188854949 is a deficient number, since it is larger than the sum of its proper divisors (1).

188854949 is an equidigital number, since it uses as much as digits as its factorization.

188854949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3317760, while the sum is 56.

The square root of 188854949 is about 13742.4506184305. The cubic root of 188854949 is about 573.7325063688.

The spelling of 188854949 in words is "one hundred eighty-eight million, eight hundred fifty-four thousand, nine hundred forty-nine".