188212441 has 2 divisors, whose sum is σ = 188212442. Its totient is φ = 188212440.

The previous prime is 188212433. The next prime is 188212463. The reversal of 188212441 is 144212881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187580416 + 632025 = 13696^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 188212441 - 2³ = 188212433 is a prime.

It is not a weakly prime, because it can be changed into another prime (188212411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94106220 + 94106221.

It is an arithmetic number, because the mean of its divisors is an integer number (94106221).

Almost surely, 2^188212441 is an apocalyptic number.

It is an amenable number.

188212441 is a deficient number, since it is larger than the sum of its proper divisors (1).

188212441 is an equidigital number, since it uses as much as digits as its factorization.

188212441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4096, while the sum is 31.

The square root of 188212441 is about 13719.0539396855. The cubic root of 188212441 is about 573.0811306999.

The spelling of 188212441 in words is "one hundred eighty-eight million, two hundred twelve thousand, four hundred forty-one".